Win Update KB5094126 Windows 11 Cumulative Update build 26100.8655 (24H2) and 26200.8655 (25H2) - June 9



 Microsoft Support:

This cumulative update for Windows 11, version 25H2 and 24H2 (KB5094126) includes the latest security fixes and improvements, along with non-security updates from last month's optional preview release.

Visit the Windows release health dashboard for the latest status on this release.


Announcements and messages​

This section provides key notifications related to this release, including announcements, change logs, and end-of-support notices.

Windows Secure Boot certificate expiration
Important: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business devices over the past several months. Devices that haven’t received the newer certificates will continue to start and operate normally, and standard Windows updates will continue to install. Updated certificates will continue to be delivered through Windows Update in the coming months.

www.elevenforum.com

Updating Microsoft Secure Boot keys before expiration in June 2026

UPDATE 4/02: https://support.microsoft.com/en-us/topic/secure-boot-certificate-update-status-in-the-windows-security-app-5ce39986-7dd2-4852-8c21-ef30dd04f046 UPDATE 2/10: https://www.elevenforum.com/t/refreshing-the-root-of-trust-industry-collaboration-on-secure-boot-certificate-updates.44460/...
www.elevenforum.com www.elevenforum.com

End of updates​

Windows 11, version 24H2 Home and Pro editions will reach end of updates on October 13, 2026. Devices running these editions will no longer receive fixes for known issues, time zone updates, technical support, or monthly security and preview updates containing protections from the latest security threats. Enterprise and Education editions remain supported until October 12, 2027.

To stay protected and up to date, we recommend you upgrade to the latest version of Windows 11.

Change log​

Change date​
Change description​
June 16. 2026Known issue added: "Microsoft Office applications might fail to open from certain third-party apps".
June 10, 2026Update: Folder customization added.

Improvements​

This update includes new features and quality improvements that were part of the following update:
This update addresses security vulnerabilities documented in the following guide:
The following summary outlines key quality improvements addressed by this update. The bold text within the brackets indicates the item or area of the change.
  • [Secure Boot] With this update, Windows quality updates include additional high confidence device targeting data, increasing coverage of devices eligible to automatically receive new Secure Boot certificates. Devices receive the new certificates only after demonstrating sufficient successful update signals, maintaining a controlled and phased rollout.
  • [Virtualization] Fixed: This update addresses an issue that could result in Stop errors HYPERVISOR_ERROR (0x20001) and KMODE_EXCEPTION_NOT_HANDLED (0x1E) after installing KB5089573 on some devices during system restarts, virtual machine operations, or while running some gaming applications
  • [Folder customization] This update introduces a security hardening change to how Windows processes desktop.ini files. As a result, some users might notice missing custom folder icons or localized folder names for content from downloaded or remote locations. Note that access to folders is not affected. For more information, see Custom folder icons or localized folder names might not appear after installing the June 2026 Windows security update.
If you've already installed previous updates, your device will download and install only the new updates included in this package.

AI Components​

This release updates the following AI components:

AI Component​
Version​
Image Search1.2605.856.0
Content Extraction1.2605.856.0
Semantic Analysis1.2605.856.0
Settings Model1.2605.856.0

Windows 11 servicing stack update (KB5094135)- 26100.8648​

This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) ensure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates. To learn more about SSUs, see Simplifying on-premises deployment of servicing stack updates.

Known issues in this update​

Symptoms

Microsoft has received reports of an issue in which certain third-party applications might be unable to launch Microsoft Office applications or open documents after installing the Windows updates released on or after June 9, 2026. This issue affects certain third-party applications that use OLE automation to interact with Microsoft Office applications. In some cases, the Office application or document might fail to open without displaying an error message.

Affected Microsoft Office applications might include Word, Excel, PowerPoint, Access, and other Microsoft Office applications when launched from within the affected third-party application.

Reports indicate that this issue may affect applications such as CCH Engagement, Workpaper Manager, dental software (such as Dentrix and Softdent), and Zotero; other similar applications might also be impacted.

Third-party information disclaimer

The third-party products listed are manufactured by companies that are independent of Microsoft. We make no warranty, implied or otherwise, about the performance or reliability of these products.

Workaround

A resolution is in progress and will be included in a future Windows update. More information will be shared when it becomes available.

To work around this issue, open the application or document directly instead of launching it from the affected third-party application.

For organizations, a workaround is available for affected devices. To apply this workaround in your organization and mitigate the issue, please contact Microsoft Support for business.

How to get this update​

Before you install this update

Microsoft combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). For general information about SSUs, see Servicing stack updates.

Deployment​

If you deploy dynamic updates such as this update to an existing Windows image, ensure the boot.stl file is included as part of the installation media. Failure to include the file might prevent devices from successfully starting from the installation media and can result in error code 0xc0430001.

Note: The boot.stl file is used during Secure Boot validation and must match the Windows version and architecture of the image you are updating.

To ensure the boot.stl file is included as part of the installation media, do one of the following:
  • Use the Update WinPE script to update an existing Windows image. (Recommended)
  • Manually copy the boot.stl file from the device Windows\Boot\EFI folder to the corresponding folder on your installation media before deploying the update.
For information about how to apply Dynamic Update packages to existing Windows images, see Update Windows installation media with Dynamic Update.

Install this update​

To install this update, use one of the following Windows and Microsoft release channels.

Available​
Next Step​
Included
This update downloads and installs automatically from Windows Update and Microsoft Update.
Included
To install this release from the Microsoft Update Catalog, select the option that matches your device architecture (arm64 or x64), and then follow the instructions.

File information​

For a list of the files provided in this update, download the file information for cumulative update 5094126.

For a list of the files provided in the servicing stack update, download the file information for the SSU (KB5094135) - version 26100.8648.


 Source:

June 9, 2026—KB5094126 (OS Builds 26200.8655 and 26100.8655) - Microsoft Support

support.microsoft.com support.microsoft.com


Check Windows Updates


UUP Dump:

64-bit ISO download:
uupdump.net

Select language for Windows 11, version 24H2 (26100.8655) amd64

Select language for Windows 11, version 24H2 (26100.8655) amd64 on UUP dump. UUP dump lets you download Unified Update Platform files, like Windows Insider updates, directly from Windows Update.
uupdump.net
uupdump.net

Select language for Windows 11, version 25H2 (26200.8655) amd64

Select language for Windows 11, version 25H2 (26200.8655) amd64 on UUP dump. UUP dump lets you download Unified Update Platform files, like Windows Insider updates, directly from Windows Update.
uupdump.net

ARM64 ISO download:
uupdump.net

Select language for Windows 11, version 24H2 (26100.8655) arm64

Select language for Windows 11, version 24H2 (26100.8655) arm64 on UUP dump. UUP dump lets you download Unified Update Platform files, like Windows Insider updates, directly from Windows Update.
uupdump.net
uupdump.net

Select language for Windows 11, version 25H2 (26200.8655) arm64

Select language for Windows 11, version 25H2 (26200.8655) arm64 on UUP dump. UUP dump lets you download Unified Update Platform files, like Windows Insider updates, directly from Windows Update.
uupdump.net

www.elevenforum.com

UUP Dump - Download Windows Insider ISO

UUP Dump is the most practical and easy way to get ISO images of any Insider Windows 10 or Windows 11 version, as soon as Microsoft has released a new build. UUP Dump creates a download configuration file according to your choices, downloads necessary files directly from Microsoft servers, and...
www.elevenforum.com www.elevenforum.com
 
Last edited:
Click to expand...

My Computers My Computers

System One System Two

  • At a glance

    Win 11 Home ♦♦♦26200.8655 ♦♦♦♦♦♦♦25H2AMD Ryzen 7 3700XG.Skill (F4-3200C14D-16GTZKW)EVGA RTX 2070 (08G-P4-2171-KR)
    OS
    Win 11 Home ♦♦♦26200.8655 ♦♦♦♦♦♦♦25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Built by Ghot® [May 2020]
    CPU
    AMD Ryzen 7 3700X
    Motherboard
    Asus Pro WS X570-ACE (BIOS 5302)
    Memory
    G.Skill (F4-3200C14D-16GTZKW)
    Graphics Card(s)
    EVGA RTX 2070 (08G-P4-2171-KR)
    Sound Card
    Realtek ALC1220P / ALC S1220A
    Monitor(s) Displays
    Dell U3011 30"
    Screen Resolution
    2560 x 1600
    Hard Drives
    2x Samsung 860 EVO 500GB,
    WD 4TB Black FZBX - SATA III,
    WD 8TB Black FZBX - SATA III,
    DRW-24B1ST CD/DVD Burner
    PSU
    PC Power & Cooling 750W Quad EPS12V
    Case
    Cooler Master ATCS 840 Tower
    Cooling
    CM Hyper 212 EVO (push/pull)
    Keyboard
    Ducky DK9008 Shine II Blue LED
    Mouse
    Logitech Optical M-100
    Internet Speed
    300/300
    Browser
    Firefox (latest)
    Antivirus
    Bitdefender Total Security
    Other Info
    Speakers: Klipsch Pro Media 2.1

  • At a glance

    Windows XP Pro 32bit w/SP3AMD Athlon 64 X2 5000+ (OC'd @ 3.2Ghz)TWIN2X2048-6400C4DHX (2 x 1GB, DDR2 800)EVGA 256-P2-N758-TR GeForce 8600GT SSC
    Operating System
    Windows XP Pro 32bit w/SP3
    Computer type
    PC/Desktop
    Manufacturer/Model
    Built by Ghot® (not in use)
    CPU
    AMD Athlon 64 X2 5000+ (OC'd @ 3.2Ghz)
    Motherboard
    ASUS M2N32-SLI Deluxe Wireless Edition
    Memory
    TWIN2X2048-6400C4DHX (2 x 1GB, DDR2 800)
    Graphics card(s)
    EVGA 256-P2-N758-TR GeForce 8600GT SSC
    Sound Card
    Onboard
    Monitor(s) Displays
    ViewSonic G90FB Black 19" Professional (CRT)
    Screen Resolution
    up to 2048 x 1536
    Hard Drives
    WD 36GB 10,000rpm Raptor SATA
    Seagate 80GB 7200rpm SATA
    Lite-On LTR-52246S CD/RW
    Lite-On LH-18A1P CD/DVD Burner
    PSU
    PC Power & Cooling Silencer 750 Quad EPS12V
    Case
    Generic Beige case, 80mm fans
    Cooling
    ZALMAN 9500A 92mm CPU Cooler
    Keyboard
    Logitech Classic Keybooard 200
    Mouse
    Logitech Optical M-BT96a
    Internet Speed
    300/300
    Browser
    Firefox 3.x ??
    Antivirus
    Symantec (Norton)
    Other Info
    Still assembled, still runs. Haven't turned it on for 15 years?
Ghot said:
I'm not gonna see ANY latency when running Zelda. ^^
Click to expand...
Yeah, I meant in general your not going to see any improvements in applications. It's all purely around launching them.
 

My Computer My Computer

At a glance

W11Ryzen 9800X3D2x24GB T-Force Delta 6400 MT/SMSI RTX 5080 SUPRIM LIQUID SOC
OS
W11
Computer type
PC/Desktop
CPU
Ryzen 9800X3D
Motherboard
MSI X870E Carbon
Memory
2x24GB T-Force Delta 6400 MT/S
Graphics Card(s)
MSI RTX 5080 SUPRIM LIQUID SOC
PSU
Corsair RM850X
Case
Antec Flux
Cooling
Corsair Titan RX360
BrianInEngland said:
Why is the MCT ISO .8653 and not .8655?
Click to expand...
Beats me. In a YT video a reviewer also talks about this way to get your system to 26200.6855. But apparently it doesn't. The .ISO created by MCT is also leaner; 6,25Gb while the official v2 version is 7,76Gb. OK the official one let you choose Home/Pro etc. The MCT is fixed to the Windows version you already have. (While it also contains Home/Pro etc. Install let not you change that version) Amazingly the number of packages drops down from 174 down to 139.

Interrogating the install.esd before the new install also reveals the build version is also 8653;

Code: 
C:\Windows\System32>Dism /Get-WimInfo /WimFile:M:\Sources\install.esd /index:5

Deployment Image Servicing and Management tool
Version: 10.0.26100.8521

Details for image : M:\Sources\install.esd

Index : 5   (Index for Windows 11 Pro, Index for Windows Home = 1)
Name : Windows 11 Pro
Description : Windows 11 Pro
Size : 25.276.282.305 bytes
WIM Bootable : No
Architecture : x64
Hal : <undefined>
Version : 10.0.26200
ServicePack Build : 8653
ServicePack Level : 0
Edition : Professional
Installation : Client
ProductType : WinNT
ProductSuite : Terminal Server
System Root : WINDOWS
Directories : 33813
Files : 148847
Created : 6-6-2026 - 05:36:50
Modified : 13-6-2026 - 10:40:11 (Download time.)
Languages :
        nl-NL (Default)

The operation completed successfully.

Package overview of 26200.8655
Code: 
------------------------------------------------------------------
This 26200.8655 Update contains 9 different build versions.
------------------------------------------------------------------
   75X  1742           
   17X  26100.1        
    1X  6717           
    1X  8037           
    2X  8117           
    1X  8648           
   75X  8655           
    1X  9335           
    1X  9337           
======================================
Total number of packages found: 174

Package overview of 26200.8653
Code: 
------------------------------------------------------------------
This 26200.8653 Update contains 9 different build versions.
------------------------------------------------------------------
   61X  1742           
   11X  26100.1        
    1X  6717           
    1X  7900           
    1X  8037           
    1X  8117           
    1X  8648           
   61X  8653           
    1X  9335           
==================================================
Total number of packages found: 139

What I find remarkable is that the number of 1742 base version drops also from 74 to 61. (In both updates the number of 1742 and the version build packages are the same.) During all updates of 25H2 that number was still the same. During new installs and In-Place-Installments. Despite a new install it does not partitions your disk but reuses it. At the end it also contains an windows.old directory with no other directory's then your C:\Users\<Username> Deleted this one because I already have a backup of the whole disk.
 

My Computers My Computers

System One System Two

  • At a glance

    Win 11 Pro "25H2" Build 26200.8653, Zorin OS ProIntel® Core™ i7-12700KF 12th Gen. (S1700)32GB DDR5 5600-36 Vengeance (2x16)PCIe4.0 Asus NVIDIA RTX3060Ti
    OS
    Win 11 Pro "25H2" Build 26200.8653, Zorin OS Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self built
    CPU
    Intel® Core™ i7-12700KF 12th Gen. (S1700)
    Motherboard
    ASUS Prime Z690-A, BIOS v4505 (Z690 Intel Chipset)
    Memory
    32GB DDR5 5600-36 Vengeance (2x16)
    Graphics Card(s)
    PCIe4.0 Asus NVIDIA RTX3060Ti
    Sound Card
    Onboard; Realtek
    Monitor(s) Displays
    34" LG 34UC79G-B Curved 21:9 144Hz
    Screen Resolution
    2560x1080 (No HDR)
    Hard Drives
    250Gb Samsung 870PRO NVMe (Win 11 Pro)
    1Tb Samsung 980PRO NVMe
    1Tb Samsung 970EVO NVMe
    2Tb Samsung 990PRO NVMe with heatsink.
    4Tb WDC WD40EZRZ Blue SATA (Int.)
    4Tb WDC WD40EZRZ Blue SATA (Int.)
    3Tb WDC WD30EFRZ Red SATA (Int.)
    256Gb Samsung 840PRO SSD (RHEL 9,5)
    256Gb Samsung 850PRO SSD (Zorin OS Pro 18)
    PSU
    Coolermaster 850W V2 Gold with internal 12cm exaust fan
    Case
    Be-Quiet Pure Base 600.
    Cooling
    3x Be-Quiet! 12/14cm "Silent Wings 4" casefans, 1x Arctic Freezer i35 CPU towerblock with fan.
    Keyboard
    Steelseries APEX 7 keyboard.
    Mouse
    Logitech G-502 Hero
    Internet Speed
    1Gb
    Browser
    Brave
    Antivirus
    F-Secure
    Other Info
    No Noise system.
    256Gb Kingston Travler USB 3.0 drive.
    64Gb Sandisk USB 3.2 drive. (Ventoy)
    8Gb Philips USB 3.0 drive. (Win. Inst.)
    8Gb Philips USB 3.0 drive. (Rescue disk)
    2Tb WD USB 3.0 Passport drive.
    USB Ext. 500Gb WD SATA drive.
    External USB 3.0 C.A. CD/DVD* burner.

  • At a glance

    Windows 11 Pro 25H2Intel® Core™ i7-6700K 6th Gen. (S1151)32Gb DDR4 2400 Corsair Vengeance (4x8)ASUS GeForce GTX1080
    Operating System
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Selfbuild
    CPU
    Intel® Core™ i7-6700K 6th Gen. (S1151)
    Motherboard
    ASUS Maximus VIII Ranger (Intel Chipset Z170)
    Memory
    32Gb DDR4 2400 Corsair Vengeance (4x8)
    Graphics card(s)
    ASUS GeForce GTX1080
    Sound Card
    Onboard; Realtek
    Monitor(s) Displays
    LG IPS277L 27" WideLED, IPS
    Screen Resolution
    1920x1080
    Hard Drives
    Samsung 850 Pro SSD
    PSU
    Zalman ZM600-HP with internal exhaust fan. Heatpipes & Modular cables.
    Case
    Cooler Master Aero
    Cooling
    Scythe Mugen 4 dual fan towerblock.
    Keyboard
    Red Dragon
    Mouse
    Red Dragon
    Internet Speed
    1Gb
    Browser
    Chrome
    Antivirus
    F-Secure
I did a clean install using the MCT created install USB yesterday, and it did indeed install 26200.8653.
As soon as I connected to Windows update it grabbed Security Update (KB5094126) (26200.8655).
Dism RestoreHealth still ran incredibly slow in the 60-70% range, otherwise all seems to be well.

peace
wanna
 

My Computers My Computers

System One System Two

  • At a glance

    Windows 11 Pro 64 bitIntel® Core™ i5-14600KG.SKILL Ripjaws S5 Series DDR5 (2x16GB) 6400M...PNY RTX 5060 Ti OC 16GB
    OS
    Windows 11 Pro 64 bit
    Computer type
    PC/Desktop
    Manufacturer/Model
    Acme Mail Order (meep meep)
    CPU
    Intel® Core™ i5-14600K
    Motherboard
    MSI PRO Z790-A MAX WiFi bios 7E07vMA
    Memory
    G.SKILL Ripjaws S5 Series DDR5 (2x16GB) 6400MT/s CL32
    Graphics Card(s)
    PNY RTX 5060 Ti OC 16GB
    Sound Card
    Onboard Realtek® ALC4080 Codec
    Monitor(s) Displays
    2 x Dell - S3222DGM 32" LED Curved QHD FreeSync Gaming Monitor
    Screen Resolution
    2560x1440
    Hard Drives
    990 PRO PCIe 4.0 NVMe®1TB OS
    970 EVO PCIe 3.0 NVMe® SSD 500GB Games
    860 EVO SATA 2.5" SSD 1TB Storage
    PSU
    RMx Series™ RM850x — 80 PLUS® Gold
    Case
    LIAN LI PC-G70B Black Aluminum Full Tower
    Cooling
    Custom loop Optimus Foundation Block, MCP655-PWM D5 pump, MCR320 QP rad
    Keyboard
    Razer Black Widow Ultimate
    Mouse
    Razer Death Adder Elite
    Internet Speed
    500 down 20 up
    Browser
    Edge / Chrome
    Antivirus
    Microsoft Defender
    Other Info
    Always switching installs testing out the latest and greatest.

  • At a glance

    Windows 11 Pro 64 bit latest public releaseIntel® Core™ i5-11600KG.SKILL Ripjaws V Series 16GB DDR4 3600 (16-1...EVGA GeForce RTX 3060 XC GAMING 12GB
    Operating System
    Windows 11 Pro 64 bit latest public release
    Computer type
    PC/Desktop
    Manufacturer/Model
    Acme Mail Order (meep meep) Wife's PC Edition
    CPU
    Intel® Core™ i5-11600K
    Motherboard
    MSI - Z590 A Pro - bios 7D09v1B1
    Memory
    G.SKILL Ripjaws V Series 16GB DDR4 3600 (16-16-16-36)
    Graphics card(s)
    EVGA GeForce RTX 3060 XC GAMING 12GB
    Sound Card
    Onboard Realtek® ALC897 Codec
    Monitor(s) Displays
    2 x 27'' ACER S271HL
    Screen Resolution
    1920x1080
    Hard Drives
    980 PRO PCIe 4.0 NVMe® SSD 250GB OS
    Samsung 128GB 850 PRO SATA III for Storage
    PSU
    CORSAIR - CX-M Series 650W
    Case
    LIAN LI PC-A16B Black Aluminum ATX Mid Tower
    Cooling
    Thermalright Phantom Spirit 120SE Air Cooler
    Keyboard
    Logitech - K740 Illuminated
    Mouse
    Razer Death Adder Elite
    Internet Speed
    500 down 20 up
    Browser
    Chrome
    Antivirus
    Windows Defender
    Other Info
    Stock clocked, over cooled, and unmolested for a rock solid, whisper quiet, Wifey approved user experience.
I also created a bootable flash drive using the MCT yesterday and it also grabbed .8653 and afterwards the June update was installed. It's a change of behavior since if the bootable flash drive was created Thursday after Patch Tuesday or after, it already included the update. This time at least the window that shows the system steps when installing is still there. You know, something like this: I've been performing monthly clean installs of Windows 11 since 25H2 came out and I know this very well.
- Bootable flash drive created before Patch Tuesday: When installing Windows the window shown above appears and downloads and installs the monthly update along with drivers and tells you the %, when the system is going to reboot etc.
- Bootable flash drive create the Thursday after Patch Tuesday: When installing Windows It already includes the monthly update and when you connect to the internet the window doesn't show up and you have to let the system grab the drivers. It could be on the window where you're prompted to name your device or on some other step along the way. The process runs in the background and you have no idea when it's finished - in my case I had to listen to my laptop fans to get a general idea when it was done...ridiculous

Problem is this time, like I said before, the June monthly update is still being downloaded and installed. And to make matters worse, some features are missing from my device. I've tried multiple clean installs and some features and settings are missing, like for example, lock screen widgets. There isn't even an option to enable/disable them. It's like they were removed from Windows. Maybe the code is there and it's going to be triggered in the future bla bla bla but what's the point? Prior to creating a flash drive on Friday, on Tuesday I took the same steps and it installed everything well. So basically I created a flash drive that should already have the update embedded and instead it also downloads it and installs it while at the same time installing a light version of Windows. How does this make any sense?
Not to mention the bug when deleting stuff. You delete a folder named ''A'' and the recycle bin asks you if you want to permanently delete a folder named '&4tyhgfuh'
Baffling stuff from MS once again. Why am I even surprised...
 

My Computer My Computer

At a glance

Windows 11
OS
Windows 11
Computer type
Laptop
Manufacturer/Model
ASUS

My Computers My Computers

System One System Two

  • At a glance

    26200.8037i5-11400F32GBGeforce GT-1030
    OS
    26200.8037
    Computer type
    PC/Desktop
    CPU
    i5-11400F
    Motherboard
    Gigabyte
    Memory
    32GB
    Graphics Card(s)
    Geforce GT-1030
    Keyboard
    Logitech K400
    Mouse
    Logitech M720
    Internet Speed
    600 Mb
    Browser
    Edge

  • At a glance

    Pentium N42004GBIntel HD Graphics 505
    Computer type
    Laptop
    CPU
    Pentium N4200
    Motherboard
    ASUS
    Memory
    4GB
    Graphics card(s)
    Intel HD Graphics 505
    Sound Card
    HD Definition Audio Device
    Screen Resolution
    1366 x 768
    Mouse
    M510
    Internet Speed
    100Mb +
    Browser
    Edge
    Antivirus
    Windows Security
Wannagofast said:
I did a clean install using the MCT created install USB yesterday, and it did indeed install 26200.8653.
As soon as I connected to Windows update it grabbed Security Update (KB5094126) (26200.8655).
Dism RestoreHealth still ran incredibly slow in the 60-70% range, otherwise all seems to be well.

peace
wanna
Click to expand...
Find it strange that after a new install of 26200.8653 it updates to 26200.8655 with KB5094126. Are sure you did a clean install? (No personal files, etc. are left behind) Looks more like a In-Place-Installment. After my new install I searched for updates many times over the past 3 days and it came up empty. Ik can't image that there is an update path between 8653 and 8655. The only difference is 2 versions. This morning only a 2026-05 .NET Framework Preview-update (KB5092427) appeared. Winver still reports 26200.8653.

Other people (see the comments) also confirms that the MCT downloads 26200.8653 and sticks to it.

www.neowin.net

Microsoft releases new Windows 11 Media Creation Tool with the latest updates

A new version of the official Media Creation Tool app is now available, making it easier to clean-install the most recent Windows 11 update with its new features and performance improvements.
www.neowin.net www.neowin.net

It seems that 8653 had an issue that needed fixing. They did that with 8655. What was that issue? See: MCT latest build 26200.8653 has the same problem as previous 26200.8457, any fix coming for this nasty problem? - Microsoft Q&A The problem only occurs if you tried an In-Place-Installment. I did not see any issues of this kind during my new install. It seems that with MCT MS forgot to install the fix into 8653 so that it became 8655. Used this MCT tool just now to see what it would download now.... It's still 8653..... Created on 06-06-2026.
 

My Computers My Computers

System One System Two

  • At a glance

    Win 11 Pro "25H2" Build 26200.8653, Zorin OS ProIntel® Core™ i7-12700KF 12th Gen. (S1700)32GB DDR5 5600-36 Vengeance (2x16)PCIe4.0 Asus NVIDIA RTX3060Ti
    OS
    Win 11 Pro "25H2" Build 26200.8653, Zorin OS Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self built
    CPU
    Intel® Core™ i7-12700KF 12th Gen. (S1700)
    Motherboard
    ASUS Prime Z690-A, BIOS v4505 (Z690 Intel Chipset)
    Memory
    32GB DDR5 5600-36 Vengeance (2x16)
    Graphics Card(s)
    PCIe4.0 Asus NVIDIA RTX3060Ti
    Sound Card
    Onboard; Realtek
    Monitor(s) Displays
    34" LG 34UC79G-B Curved 21:9 144Hz
    Screen Resolution
    2560x1080 (No HDR)
    Hard Drives
    250Gb Samsung 870PRO NVMe (Win 11 Pro)
    1Tb Samsung 980PRO NVMe
    1Tb Samsung 970EVO NVMe
    2Tb Samsung 990PRO NVMe with heatsink.
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hader said:
Find it strange that after a new install of 26200.8653 it updates to 26200.8655 with KB5094126. Are sure you did a clean install? (No personal files, etc. are left behind) Looks more like a In-Place-Installment.
Click to expand...
Yes it was a clean install. I booted to a freshly created media creation tool USB, deleted all partitions, selected to install to the unformatted space, and chose to keep nothing.

Not sure why yours won't update from 53 to 55. But mine did so immediately with no issue. It was actually quite irritating to me as it kind of defeated the purpose of doing a clean install when the first thing it does is an update.

Peace
Wanna
 

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Wannagofast said:
Yes it was a clean install. I booted to a freshly created media creation tool USB, deleted all partitions, selected to install to the unformatted space, and chose to keep nothing.

Not sure why yours won't update from 53 to 55. But mine did so immediately with no issue. It was actually quite irritating to me as it kind of defeated the purpose of doing a clean install when the first thing it does is an update.

Peace
Wanna
Click to expand...
I'm running 26200.8655, I don't see any issues. Why don't you want to just accept the update?
 

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Wannagofast said:
Yes it was a clean install. I booted to a freshly created media creation tool USB, deleted all partitions, selected to install to the unformatted space, and chose to keep nothing.

Not sure why yours won't update from 53 to 55. But mine did so immediately with no issue. It was actually quite irritating to me as it kind of defeated the purpose of doing a clean install when the first thing it does is an update.

Peace
Wanna
Click to expand...
Can't explain it either then. The only difference I can think of is the language. Your's is English (United States) mine is Dutch.
Found also something odd inside the .ISO which I can't explain. Normally you might think that by downloading the .ISO all files have the same datestamp.
Doing a SHA256 on both downloaded .ISO's; they differ. Why? If you download each time the same .ISO they should be the same. (All language related directory's and files do have the same datestamp of the .ISO. So language is not the issue here as it seems so far.....)

Nearly all files have the same datestamp... (06-06-2026) Except 3 files inside the C:\Windows\sources directory; boot.wim, install.esd and ws.dat. Their datestamp (13-06-2026) are from the time the .ISO was downloaded and changes all the time. It looks like those are placed inside the .ISO on the fly.

I downloaded just now an other copy and generated a hash files of those 3 files and compared them to the one I had downloaded on 13-06-2026. It seems that there are minor changes inside the .ISO and inside those 3 files resulting in a changing content. The File-Hash function only looks at it's content and not at the files name or datestamp. File size are still the same but if 1 Byte has been changed it will result in a other SHA256 checksum. (I always check if available to check the downloads if the download has failed or it has been tempered with) I leave it at that. I am not going through a second time a new install to check if that version will update itself to 8655... I am happy that that /RestoreHealth functionality has returned to normal instead of trying to download stuff around 63,3%-70%.

An overview. They all differ expect for a copy of the last .ISO. As expected the checksum remains the same.
Code: 
1st MCT Windows.iso download.
File         Date      Time    Size          Hash SHA256                                                        Equal
boot.wim     13-6-2026 10:39     610.123kB   ADE64A72574181F076D60CB7220CA757E062569F9BE3D808E6A5FAB7DBC9B669   <>
install.esd  13-6-2026 10:40   5.669.578kB   A2E924554955EB1EB7FD09EE1ADB0D29C38743D9C0CECB3B6CC7C5FB04C8EC2C   <>
ws.dat       13-6-2026 10:40           1kB   538294EA256DB737F7134ABF50B127DCB2DF49144AF877BB973543A42E2FEC17   <>
Windows.iso  13-6-2026 10:40   6.555.776kB   7F66CE92CEB87E09F591990F3B7D3B644A065EF0E5868B1FE3A62B3EAE4E6A0B   <>

2nd MCT Windows.iso download.
File         Date      Time    Size          Hash SHA256
boot.wim     16-6-2026 09:52     610.123kB   69E57B7FC66DCBF849B472FF5274F34A2E79D749346B22FABDDC5F493F5196CF   <>
install.esd  16-6-2026 09:53   5.669.578kB   D3E68A881615DD437A4FEF5EB5DD5E4B33C5BA594316DA4C92C3055A9F118428   <>
ws.dat       16-6-2026 09:53           1kB   7B0FB82C4F45AF8B0A84EA66E23801B82D171B4AA123D2EA14C27CD1B16815A5   <>
Windows.iso  16-6-2026 09:53   6.555.776kB   EDEA64628B7EE764C0A0C1F70E935C6FF01C142865CC5B104C5D4D9068BE5F6F   <>

CopyWin.iso  16-6-2026 09:53   6.555.776kB   EDEA64628B7EE764C0A0C1F70E935C6FF01C142865CC5B104C5D4D9068BE5F6F   =

Note: Inside ws.dat the InstanceId changes. Might have to do with a changing session ID given by MS during the download.


Just saying. The clue might be in the way we are doing a clean install. I just mounted the .ISO and started setup.exe. After the installation I had an Windows.old directory like a In-Place-Installment leaves behind. You installed the .ISO on an USB stick, deleted the partitions and ran the setup from there. Did you saw an Windows.old directory afterwards? I suspect; No. Can't be there after you cleared all partitions. Windows just makes new ones.
Still does not explain the different behavior. Me; stuck at 8653 and you advanced to 8655. Ah well with the upcoming 26200.8728 we will both be sitting on that new build. God knows what kind of bugs are being introduced with this build..... :LOL:....... :weary:
 
Last edited:

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Sheikh said:
Why do you use this command? Doesn't DISM use Windows update to download corrupted files?
Click to expand...
I read about on another forum and it fixed my system after other DISM commands had failed.
Other replies have stated the DISM Commands with the Online switch uses Windows Update.
As I understand you can use other Switches in DISM specifying other sources.
 

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Change log​

Change date​
Change description​
June 16. 2026Known issue added: "Microsoft Office applications might fail to open from certain third-party apps".
 

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BrianInEngland said:
Why is the MCT ISO .8653 and not .8655?
Click to expand...
It doesn't matter, given that it has still a bug in boot.wim. 🤬🤷‍♂️
I had to make 26200.8655 from uup-dump to get one that still works. ️🤞
 

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fg2001gf11F said:
It doesn't matter, given that it has still a bug in boot.wim. 🤬🤷‍♂️
I had to make 26200.8655 from uup-dump to get one that still works. ️🤞
Click to expand...
What a bug ?
 

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Last edited:

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fg2001gf11F said:
If you hit "Repair my PC" it reboots to the main OS instead of opening the recovery menus. 🤬🤷‍♂️

All recent insider ISO files have the same bug. 🤣🤬🤷‍♂️
Click to expand...
OK. Tried something else if an other way has issues also (I have 26200.8653) Holding Shift while restarting the computer. The PC starts in the WinRE environment. (as expected) Hitting "Repair my PC" gives me now a separate option window with several selections to choose from. Have never seen this before. I don't want to execute a In-Place-Installment at this moment. System is working fine as it is. 1st Question; Keep my files or do a clean install, 2nd Question; From where? From the cloud or local? Stopped here..... Anybody saw this change earlier? Did not saw this in the past.


2026-06-18.webp
 

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    32GB DDR5 5600-36 Vengeance (2x16)
    Graphics Card(s)
    PCIe4.0 Asus NVIDIA RTX3060Ti
    Sound Card
    Onboard; Realtek
    Monitor(s) Displays
    34" LG 34UC79G-B Curved 21:9 144Hz
    Screen Resolution
    2560x1080 (No HDR)
    Hard Drives
    250Gb Samsung 870PRO NVMe (Win 11 Pro)
    1Tb Samsung 980PRO NVMe
    1Tb Samsung 970EVO NVMe
    2Tb Samsung 990PRO NVMe with heatsink.
    4Tb WDC WD40EZRZ Blue SATA (Int.)
    4Tb WDC WD40EZRZ Blue SATA (Int.)
    3Tb WDC WD30EFRZ Red SATA (Int.)
    256Gb Samsung 840PRO SSD (RHEL 9,5)
    256Gb Samsung 850PRO SSD (Zorin OS Pro 18)
    PSU
    Coolermaster 850W V2 Gold with internal 12cm exaust fan
    Case
    Be-Quiet Pure Base 600.
    Cooling
    3x Be-Quiet! 12/14cm "Silent Wings 4" casefans, 1x Arctic Freezer i35 CPU towerblock with fan.
    Keyboard
    Steelseries APEX 7 keyboard.
    Mouse
    Logitech G-502 Hero
    Internet Speed
    1Gb
    Browser
    Brave
    Antivirus
    F-Secure
    Other Info
    No Noise system.
    256Gb Kingston Travler USB 3.0 drive.
    64Gb Sandisk USB 3.2 drive. (Ventoy)
    8Gb Philips USB 3.0 drive. (Win. Inst.)
    8Gb Philips USB 3.0 drive. (Rescue disk)
    2Tb WD USB 3.0 Passport drive.
    USB Ext. 500Gb WD SATA drive.
    External USB 3.0 C.A. CD/DVD* burner.

  • At a glance

    Windows 11 Pro 25H2Intel® Core™ i7-6700K 6th Gen. (S1151)32Gb DDR4 2400 Corsair Vengeance (4x8)ASUS GeForce GTX1080
    Operating System
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Selfbuild
    CPU
    Intel® Core™ i7-6700K 6th Gen. (S1151)
    Motherboard
    ASUS Maximus VIII Ranger (Intel Chipset Z170)
    Memory
    32Gb DDR4 2400 Corsair Vengeance (4x8)
    Graphics card(s)
    ASUS GeForce GTX1080
    Sound Card
    Onboard; Realtek
    Monitor(s) Displays
    LG IPS277L 27" WideLED, IPS
    Screen Resolution
    1920x1080
    Hard Drives
    Samsung 850 Pro SSD
    PSU
    Zalman ZM600-HP with internal exhaust fan. Heatpipes & Modular cables.
    Case
    Cooler Master Aero
    Cooling
    Scythe Mugen 4 dual fan towerblock.
    Keyboard
    Red Dragon
    Mouse
    Red Dragon
    Internet Speed
    1Gb
    Browser
    Chrome
    Antivirus
    F-Secure
MS posted this new item on 25H2's Known Issues:

Windows 11, version 25H2 known issues and notifications
June 2026

Deleting a file from the Recycle Bin displays an internal filename in the dialog

StatusOriginating updateHistory
ConfirmedOS Build 26100.8655
KB5094126
2026-06-09		Last updated: 2026-06-18, 12:03 PT
Opened: 2026-06-18, 12:03 PT

When permanently deleting a single item from the Recycle Bin, the confirmation dialog displays the internal Recycle Bin filename (for example, $Rxxxxx.ext) instead of the original filename. The Recycle Bin itself correctly displays the original filename, and restoring the item also restores it using the original filename.

This issue occurs after installing the Windows security update released on June 9, 2026 (KB5094126).

Workaround: A workaround is available for affected devices. To apply this workaround in your organization and mitigate the issue, please contact Microsoft’s Support for business.

Next steps: We are working to release a resolution in a future Windows update and will provide more information when it is available.

Affected platforms:
  • Client: Windows 11, version 26H1; Windows 11, version 25H2; Windows 11, version 24H2; Windows 11, version 23H2; Windows 10, version 22H2; Windows 10, version 21H2
  • Server: Windows Server 2025; Windows Server 2022; Windows Server 2019; Windows Server 2016; Windows Server 2012 R2; Windows Server 2012
Click to expand...

The highlighted part in Red suggests business customers are getting a KIR (Known Issue Rollback).

If they follow the previous KIR for the Duplicate SID issue, their fix will will be in the form of a Group Policy which changes a Feature ID setting. Basically they're disabling the new feature like how ViveTool works.

Until someone leaks the KIR, it's not known which ID(s) need to be reversed. Or everyone waits for the June 2026 Preview in another week.
 

My Computer My Computer

At a glance

Windows 7
OS
Windows 7
garlin said:
MS posted this new item on 25H2's Known Issues:

Windows 11, version 25H2 known issues and notifications


The highlighted part in Red suggests business customers are getting a KIR (Known Issue Rollback).

If they follow the previous KIR for the Duplicate SID issue, their fix will will be in the form of a Group Policy which changes a Feature ID setting. Basically they're disabling the new feature like how ViveTool works.

Until someone leaks the KIR, it's not known which ID(s) need to be reversed. Or everyone waits for the June 2026 Preview in another week.
Click to expand...
cute two said:
After install this update, when I empty Recycle bin, I get strange name in Dialog Box :
View attachment 174068
Click to expand...
 

My Computers My Computers

System One System Two

  • At a glance

    26200.8037i5-11400F32GBGeforce GT-1030
    OS
    26200.8037
    Computer type
    PC/Desktop
    CPU
    i5-11400F
    Motherboard
    Gigabyte
    Memory
    32GB
    Graphics Card(s)
    Geforce GT-1030
    Keyboard
    Logitech K400
    Mouse
    Logitech M720
    Internet Speed
    600 Mb
    Browser
    Edge

  • At a glance

    Pentium N42004GBIntel HD Graphics 505
    Computer type
    Laptop
    CPU
    Pentium N4200
    Motherboard
    ASUS
    Memory
    4GB
    Graphics card(s)
    Intel HD Graphics 505
    Sound Card
    HD Definition Audio Device
    Screen Resolution
    1366 x 768
    Mouse
    M510
    Internet Speed
    100Mb +
    Browser
    Edge
    Antivirus
    Windows Security
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