Insider Windows 11 Insider Canary build 27928.1 released - Aug. 20


UPDATE 8/29:


 Windows Insider Blog:

Hello Windows Insiders, today we are releasing Windows 11 Insider Preview Build 27928 to the Canary Channel.

Changes and Improvements

[Genera]

  • The updated battery iconography we began rolling out in the Canary Channel with Build 27802 is disabled in this build. This is only temporary, and we will re-enable this in a future Canary Channel flight.

    Battery shown in black, yellow, and green to indicate different charging states.
    Battery shown in black, yellow, and green to indicate different charging states.
  • [ADDED 8/21] Administrator protection we began rolling out in the Canary Channel with Build 27718 is disabled in this build. This is only temporary, and we will re-enable this in a future Canary Channel flight.

[Settings]

We’re moving more time and language settings from Control Panel to Settings:
  • You can now add additional clocks from Settings > Time & language > Date & time under the collapsed section which can be expanded for “Show time and date in the system tray”. For those unfamiliar with the feature, these additional clocks display in Notification Center, as well as the tooltip when hovering over the clock in the taskbar.

  • You can now change your time server from Settings > Time & language > Date & time, under “Additional settings”.

  • The formatting settings for date and time have moved from Settings > Time & language > Language & region to Settings > Time & language > Date & time, and you can now change your AM/PM symbol from here as well (along with other existing formatting settings).

  • You can now change number and currency format from Settings > Time & language > Language & region, under the “Region” section.

  • If you’d like to enable Unicode UTF-8 for worldwide language support, there is now a toggle for this under Settings > Time & language > Language & region, under the “Language” section.

  • If needed, you can now copy current user language and region settings to welcome screen and system account, as well as new user accounts, from Settings > Time & language > Language & region, under “Additional settings”.

Fixes

[General]

  • Fixed an underlying issue with dao360.dll in the latest builds which could result in some apps crashing.

[Click to Do (Preview)]

  • Fixed the issue causing text and image actions in Click to Do to not work correctly and Click to Do to crash.

[File Explorer]

  • Fixed an issue where File Explorer preview windows might appear when hovering over unrelated app icons in the taskbar.
  • Fixed an issue where if you tried to use the unblock open in Properties for a file, it still shows as blocked when you open Properties the next time.

[Taskbar]

  • Fixed an issue where If you accidentally clicked down and slid your mouse on the taskbar preview thumbnail, clicking it would stop working.

[Input]

  • Fixed an underlying issue related to textinputframework.dll could result in certain apps like Sticky Notes and Notepad crashing.
  • Fixed an issue where if you attempted to type Chinese with an IME after copying something with CTRL + C, it could result in the first character getting dropped.

[Login and Lock screen]

  • Did some work to address underlying cases which could lead to you seeing a blank white screen, or a screen saying, “just a moment”, for a few minutes when logging in to your PC.
  • Did some work to address an underlying issue which could lead to the taskbar being slow to load when unlocking your PC after coming out of sleep. This issue could also have led to the password field and other login screen contents not rendering when transitioning from lock screen to login screen after sleep. If you continue experiencing issues, please report them in the Feedback Hub under Install and Update > Logon hangs.

[Live captions]

  • Fixed an issue where if you changed the opacity of live captions in Settings > Accessibility > Captions > Caption Style, it had no effect.

[Settings]

  • Fixed an issue where Settings might crash if you attempt to add a security key under Settings > Account > Sign-in options.

[Other]

  • Fixed an issue in the previous build where you might see multiple error pop ups about unexpected elements when opening Group Policy Editor.

Known issues

[General]

  • We’re investigating reports that Settings > System > Storage > Temporary files is getting stuck when scanning files. We are also investigating previous Windows Installations also not showing.
  • [NEW] Launching cmd non-elevated from the Run dialog may open in Windows Console Host rather than Windows Terminal, even if Windows Terminal is your default terminal app. If you’re experiencing this, you can type wt into Run to launch Windows Terminal directly.

[Windowing]

  • [NEW] You may experience an increase in DWM crashes in this build (which could lead to you seeing a black flash).

[File Explorer]

  • In dark mode, the red color used for a low space drive in This PC may be unexpectedly light colored in this build. Some of the other colors may also be incorrect, including that black is used for space remaining instead of a more visible color.

Reminders for Windows Insiders in the Canary Channel

  • The builds we release to the Canary Channel represent the latest platform changes early in the development cycle and should not be seen as matched to any specific release of Windows and features and experiences included in these builds may never get released as we try out different concepts and get feedback. Features may change over time, be removed, or replaced and never get released beyond Windows Insiders. Some of these features and experiences could show up in future Windows releases when they’re ready.
  • Many features in the Canary Channel are rolled out using Control Feature Rollout technology, starting with a subset of Insiders and ramping up over time as we monitor feedback to see how they land before pushing them out to everyone in this channel.
  • Some features may show up in the Dev and Beta Channels first before showing up in the Canary Channel.
  • Some features in active development we preview with Windows Insiders may not be fully localized and localization will happen over time as features are finalized. As you see issues with localization in your language, please report those issues to us via Feedback Hub.
  • To get off the Canary Channel, a clean install of Windows 11 will be required. As a reminder – Insiders can’t switch to a channel that is receiving builds with lower build numbers without doing a clean installation of Windows 11 due to technical setup requirements.
  • The desktop watermark shown at the lower right corner of the desktop is normal for these pre-release builds.
  • Check out Flight Hub for a complete look at what build is in which Insider channel.
Thanks,
Amanda & Brandon


 Source:



Check Windows Updates


UUP Dump:

64-bit ISO download:

ARM64 ISO download:

 
Last edited:

My Computer

System One

  • OS
    Windows 11 Pro + Win11 Canary VM.
    Computer type
    Laptop
    Manufacturer/Model
    ASUS Zenbook 14
    CPU
    I9 13th gen i9-13900H 2.60 GHZ
    Motherboard
    Yep, Laptop has one.
    Memory
    16 GB soldered
    Graphics Card(s)
    Integrated Intel Iris XE
    Sound Card
    Realtek built in
    Monitor(s) Displays
    laptop OLED screen
    Screen Resolution
    2880x1800 touchscreen
    Hard Drives
    1 TB NVME SSD (only weakness is only one slot)
    PSU
    Internal + 65W thunderbolt USB4 charger
    Case
    Yep, got one
    Cooling
    Stella Artois (UK pint cans - 568 ml) - extra cost.
    Keyboard
    Built in UK keybd
    Mouse
    Bluetooth , wireless dongled, wired
    Internet Speed
    900 mbs (ethernet), wifi 6 typical 350-450 mb/s both up and down
    Browser
    Edge
    Antivirus
    Defender
    Other Info
    TPM 2.0, 2xUSB4 thunderbolt, 1xUsb3 (usb a), 1xUsb-c, hdmi out, 3.5 mm audio out/in combo, ASUS backlit trackpad (inc. switchable number pad)

    Macrium Reflect Home V8
    Office 365 Family (6 users each 1TB onedrive space)
    Hyper-V (a vm runs almost as fast as my older laptop)
[ADDED 8/21] Administrator protection we began rolling out in the Canary Channel with Build 27718 is disabled in this build. This is only temporary, and we will re-enable this in a future Canary Channel flight.

 

My Computers

System One System Two

  • OS
    Windows 11 Pro for Workstations
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom self build
    CPU
    Intel i7-8700K 5 GHz
    Motherboard
    ASUS ROG Maximus XI Formula Z390
    Memory
    64 GB (4x16GB) G.SKILL TridentZ RGB DDR4 3600 MHz (F4-3600C18D-32GTZR)
    Graphics Card(s)
    ASUS ROG-STRIX-GTX1080TI-O11G-GAMING (11GB GDDR5X)
    Sound Card
    Integrated Digital Audio (S/PDIF)
    Monitor(s) Displays
    2 x Samsung Odyssey G75 27"
    Screen Resolution
    2560x1440
    Hard Drives
    1TB Samsung 990 PRO M.2,
    4TB Samsung 990 PRO M.2,
    TerraMaster F8 SSD Plus NAS
    PSU
    Seasonic Prime Titanium 850W
    Case
    Thermaltake Core P3 wall mounted
    Cooling
    Corsair Hydro H115i
    Keyboard
    Amazon Basics Wired Full Keyboard MD005
    Mouse
    Logitech MX Master 4
    Internet Speed
    2 Gbps Download and 100 Mbps Upload
    Browser
    Chrome and Edge
    Antivirus
    Microsoft Defender
    Other Info
    Logitech Z625 speaker system,
    Logitech BRIO 4K Pro webcam,
    HP Color LaserJet Pro MFP M477fdn,
    CyberPower CP1500PFCLCD
    Galaxy S23 Plus phone
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Surface Laptop 7 Copilot+ PC
    CPU
    Snapdragon X Elite (12 core) 3.42 GHz
    Memory
    16 GB LPDDR5x-7467 MHz
    Monitor(s) Displays
    15" HDR
    Screen Resolution
    2496 x 1664
    Hard Drives
    1 TB SSD
    Internet Speed
    Wi-Fi 7 and Bluetooth 5.4
    Browser
    Chrome and Edge
    Antivirus
    Microsoft Defender
Hello Brink,
Any idea why after updating with latest uupdumo ISOs 27924 and 27928 we get this problem?
It only happens using the ISO created from uupdump, tried on multiple different machines with the same result.
No problem with windows update or the official MS ISO 27924.
Works fine also with the recovery repair version 27928.1.

Cannot open any files on my disks after updating with uupdump Canary ISOs.
A clean install with the same uupdump ISOs does not have this issue. 😵‍💫🤷‍♂️
1755912353329.webp
 

My Computer

System One

  • OS
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell XPS 8930
    CPU
    Intel I9-9900K
    Memory
    64GB
    Graphics Card(s)
    NVIDIA RTX 2060
    Sound Card
    NVIDIA High Definition Audio
    Monitor(s) Displays
    4k Samsung
    Screen Resolution
    3840 x 2160
    Hard Drives
    512GB NVMe, ADATA SU 800, 2TB HDD
Hello Brink,
Any idea why after updating with latest uupdumo ISOs 27924 and 27928 we get this problem?
It only happens using the ISO created from uupdump, tried on multiple different machines with the same result.
No problem with windows update or the official MS ISO 27924.
Works fine also with the recovery repair version 27928.1.

Cannot open any files on my disks after updating with uupdump Canary ISOs.
A clean install with the same uupdump ISOs does not have this issue. 😵‍💫🤷‍♂️
View attachment 143170

Sounds like a bug with the ISO.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro for Workstations
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom self build
    CPU
    Intel i7-8700K 5 GHz
    Motherboard
    ASUS ROG Maximus XI Formula Z390
    Memory
    64 GB (4x16GB) G.SKILL TridentZ RGB DDR4 3600 MHz (F4-3600C18D-32GTZR)
    Graphics Card(s)
    ASUS ROG-STRIX-GTX1080TI-O11G-GAMING (11GB GDDR5X)
    Sound Card
    Integrated Digital Audio (S/PDIF)
    Monitor(s) Displays
    2 x Samsung Odyssey G75 27"
    Screen Resolution
    2560x1440
    Hard Drives
    1TB Samsung 990 PRO M.2,
    4TB Samsung 990 PRO M.2,
    TerraMaster F8 SSD Plus NAS
    PSU
    Seasonic Prime Titanium 850W
    Case
    Thermaltake Core P3 wall mounted
    Cooling
    Corsair Hydro H115i
    Keyboard
    Amazon Basics Wired Full Keyboard MD005
    Mouse
    Logitech MX Master 4
    Internet Speed
    2 Gbps Download and 100 Mbps Upload
    Browser
    Chrome and Edge
    Antivirus
    Microsoft Defender
    Other Info
    Logitech Z625 speaker system,
    Logitech BRIO 4K Pro webcam,
    HP Color LaserJet Pro MFP M477fdn,
    CyberPower CP1500PFCLCD
    Galaxy S23 Plus phone
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Surface Laptop 7 Copilot+ PC
    CPU
    Snapdragon X Elite (12 core) 3.42 GHz
    Memory
    16 GB LPDDR5x-7467 MHz
    Monitor(s) Displays
    15" HDR
    Screen Resolution
    2496 x 1664
    Hard Drives
    1 TB SSD
    Internet Speed
    Wi-Fi 7 and Bluetooth 5.4
    Browser
    Chrome and Edge
    Antivirus
    Microsoft Defender
Sounds like a bug with the ISO.
Possibly, but I cannot figure out what is causing the problem. 😒
We'll see with next build. 😎🤷‍♂️
 

My Computer

System One

  • OS
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell XPS 8930
    CPU
    Intel I9-9900K
    Memory
    64GB
    Graphics Card(s)
    NVIDIA RTX 2060
    Sound Card
    NVIDIA High Definition Audio
    Monitor(s) Displays
    4k Samsung
    Screen Resolution
    3840 x 2160
    Hard Drives
    512GB NVMe, ADATA SU 800, 2TB HDD
I updated my G156 desktop. It took the normal two tries to get it to install. So far the only problem I've seen is the one posted by @fg2001gf11F, I had to use Disk Cleanup to get rid of the .old folder.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    PowerSpec B746
    CPU
    Intel Core i7-10700K
    Motherboard
    ASRock Z490 Phantom Gaming 4/ax
    Memory
    16GB (8GB PC4-19200 DDR4 SDRAM x2)
    Graphics Card(s)
    NVIDIA GeForce GTX 1050 TI
    Sound Card
    Realtek Audio
    Monitor(s) Displays
    #1. LG ULTRAWIDE 34" #2. AOC Q32G2WG3 32"
    Screen Resolution
    #1. 3440 X 1440 #2. 1920 x 1080
    Hard Drives
    NVMe WDC WDS100T2B0C-00PXH0 1TB
    Samsung SSD 860 EVO 1TB
    PSU
    750 Watts (62.5A)
    Case
    PowerSpec/Lian Li ATX 205
    Keyboard
    Logitech K270
    Mouse
    Logitech M185
    Browser
    Microsoft Edge and Firefox
    Antivirus
    Webroot SecureAnywhere CE 26.1
  • Operating System
    Windows 11 Canary Channel
    Computer type
    PC/Desktop
    Manufacturer/Model
    PowerSpec G156
    CPU
    Intel Core i5-8400 CPU @ 2.80GHz
    Motherboard
    AsusTeK Prime B360M-A
    Memory
    16 MB DDR 4-2666
    Monitor(s) Displays
    23" Speptre HDMI 75Hz
    Screen Resolution
    1920x1080
    Hard Drives
    Samsung 970 EVO 500GB NVMe
    Keyboard
    Logitek K270
    Mouse
    Logitek M185
    Browser
    Firefox, Edge and Edge Canary
    Antivirus
    Windows Defender
There is definitely a problem with the last 2 Canary 27924 and 27928 built from uupdump.
I tried building another iso 27928 from uupdump on Aug 28, 2025, and used it to do an update in place. I ended up with the problem showing below.
This is the second Canary Build from uupdump that creates problems when used to update a system.
Both 27924 and 27928 from uupdump create problems.
Everything is fine with Windows Update or with the official MS ISO 27924.
I also tried the Recovery repair version from MS and that worked without any of these problems.

1755993454423.webp
 

My Computer

System One

  • OS
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell XPS 8930
    CPU
    Intel I9-9900K
    Memory
    64GB
    Graphics Card(s)
    NVIDIA RTX 2060
    Sound Card
    NVIDIA High Definition Audio
    Monitor(s) Displays
    4k Samsung
    Screen Resolution
    3840 x 2160
    Hard Drives
    512GB NVMe, ADATA SU 800, 2TB HDD
Possibly, but I cannot figure out what is causing the problem. 😒
We'll see with next build. 😎🤷‍♂️
You can always post on the UUPDump support forums and ask.
 

My Computer

System One

  • OS
    WindowsXP/7/8/8.1/10/11,Linux,Android,FreeBSD Unix
    Computer type
    Laptop
    Manufacturer/Model
    Dell XPS 15 9570
    CPU
    Intel® Core™ i7-8750H 8th Gen 2.2Ghz up to 4.1Ghz
    Motherboard
    Dell XPS 15 9570
    Memory
    64GB using 2x32GB CL16 Mushkin redLine modules
    Graphics Card(s)
    Intel UHD 630 & NVIDIA GeForce GTX 1050 Ti with 4GB DDR5
    Sound Card
    Realtek ALC3266-CG
    Monitor(s) Displays
    15.6" 4K Touch UltraHD 3840x2160 made by Sharp
    Screen Resolution
    3840x2160 4K UltraHD
    Hard Drives
    Samsung MZ-V9P4T0B/AM 990 PRO 4TB PCIe®4.0 NVMe™ M.2 SSD was Toshiba KXG60ZNV1T02 NVMe 1TB SSD
    PSU
    Dell XPS 15 9570
    Case
    Dell XPS 15 9570
    Cooling
    Stock
    Keyboard
    Stock
    Mouse
    SwitftPoint ProPoint
    Internet Speed
    Comcast/XFinity 1.44Gbps/42.5Mbps
    Browser
    Microsoft EDGE (Chromium based) & Google Chrome
    Antivirus
    Windows Defender that came with Windows
You can always post on the UUPDump support forums and ask.
I didn't even know there was a support forum for uupdump.
Do you have a link?
 

My Computer

System One

  • OS
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell XPS 8930
    CPU
    Intel I9-9900K
    Memory
    64GB
    Graphics Card(s)
    NVIDIA RTX 2060
    Sound Card
    NVIDIA High Definition Audio
    Monitor(s) Displays
    4k Samsung
    Screen Resolution
    3840 x 2160
    Hard Drives
    512GB NVMe, ADATA SU 800, 2TB HDD
I didn't even know there was a support forum for uupdump.
Do you have a link?
They had one originally on Github itself that I know existed in 2023 but later they removed it:

Now all the people are posting and answering in this thread:
The issue you mentioned might be related to starting with comment #5883
 

My Computer

System One

  • OS
    WindowsXP/7/8/8.1/10/11,Linux,Android,FreeBSD Unix
    Computer type
    Laptop
    Manufacturer/Model
    Dell XPS 15 9570
    CPU
    Intel® Core™ i7-8750H 8th Gen 2.2Ghz up to 4.1Ghz
    Motherboard
    Dell XPS 15 9570
    Memory
    64GB using 2x32GB CL16 Mushkin redLine modules
    Graphics Card(s)
    Intel UHD 630 & NVIDIA GeForce GTX 1050 Ti with 4GB DDR5
    Sound Card
    Realtek ALC3266-CG
    Monitor(s) Displays
    15.6" 4K Touch UltraHD 3840x2160 made by Sharp
    Screen Resolution
    3840x2160 4K UltraHD
    Hard Drives
    Samsung MZ-V9P4T0B/AM 990 PRO 4TB PCIe®4.0 NVMe™ M.2 SSD was Toshiba KXG60ZNV1T02 NVMe 1TB SSD
    PSU
    Dell XPS 15 9570
    Case
    Dell XPS 15 9570
    Cooling
    Stock
    Keyboard
    Stock
    Mouse
    SwitftPoint ProPoint
    Internet Speed
    Comcast/XFinity 1.44Gbps/42.5Mbps
    Browser
    Microsoft EDGE (Chromium based) & Google Chrome
    Antivirus
    Windows Defender that came with Windows
They had one originally on Github itself that I know existed in 2023 but later they removed it:

Now all the people are posting and answering in this thread:
The issue you mentioned might be related to starting with comment #5883
Looks like nobody else tried an in-place update with a uupdump 27928.1 ISO. 🤣🤷‍♂️
 

My Computer

System One

  • OS
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell XPS 8930
    CPU
    Intel I9-9900K
    Memory
    64GB
    Graphics Card(s)
    NVIDIA RTX 2060
    Sound Card
    NVIDIA High Definition Audio
    Monitor(s) Displays
    4k Samsung
    Screen Resolution
    3840 x 2160
    Hard Drives
    512GB NVMe, ADATA SU 800, 2TB HDD
Looks like nobody else tried an in-place update with a uupdump 27928.1 ISO. 🤣🤷‍♂️
I meant you should still write about the problem since at least in #5883, it mentions it is failing to integrate something when building the ISO which is probably one of the reasons why the ISO does not work correctly. If you don't mention the problem, they will not know about it and the problem will be there in new builds as well as the script probably needs to be updated.
 

My Computer

System One

  • OS
    WindowsXP/7/8/8.1/10/11,Linux,Android,FreeBSD Unix
    Computer type
    Laptop
    Manufacturer/Model
    Dell XPS 15 9570
    CPU
    Intel® Core™ i7-8750H 8th Gen 2.2Ghz up to 4.1Ghz
    Motherboard
    Dell XPS 15 9570
    Memory
    64GB using 2x32GB CL16 Mushkin redLine modules
    Graphics Card(s)
    Intel UHD 630 & NVIDIA GeForce GTX 1050 Ti with 4GB DDR5
    Sound Card
    Realtek ALC3266-CG
    Monitor(s) Displays
    15.6" 4K Touch UltraHD 3840x2160 made by Sharp
    Screen Resolution
    3840x2160 4K UltraHD
    Hard Drives
    Samsung MZ-V9P4T0B/AM 990 PRO 4TB PCIe®4.0 NVMe™ M.2 SSD was Toshiba KXG60ZNV1T02 NVMe 1TB SSD
    PSU
    Dell XPS 15 9570
    Case
    Dell XPS 15 9570
    Cooling
    Stock
    Keyboard
    Stock
    Mouse
    SwitftPoint ProPoint
    Internet Speed
    Comcast/XFinity 1.44Gbps/42.5Mbps
    Browser
    Microsoft EDGE (Chromium based) & Google Chrome
    Antivirus
    Windows Defender that came with Windows
I used WU to update from b27913, it worked smooth.
Only a slight delay during the restart install part.
I ran the built-in Disk Cleanup after a few misc. app. tests & I gained 15.8GB of space.

Win11 b27928.1_ 1b1stDesktopb.webp
 

My Computers

System One System Two

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self made in 2023
    CPU
    i7-12900K @ 3.2 GHz
    Motherboard
    ASUS ROG Maximus Z790 APEX
    Memory
    2/16 GB Critical DDR5
    Graphics Card(s)
    GeForce RTX 3060 Ti
    Sound Card
    On board sound
    Monitor(s) Displays
    27 inch LED
    Hard Drives
    1 TB Samsung SSD w/ 3 partitions
    250 GB Samsung SSD for WSE 2016 BU OS
    1 TB Samsung SSD (Storage)
    PSU
    RM850x SHIFT 80 PLUS Gold Fully Modular
    Case
    Fractal Design Define 7 Compact - Mid Tower
    Browser
    EDGE
  • Operating System
    Windows 11 Pro x2
    Computer type
    Laptop
    Manufacturer/Model
    LG gram 15, 15.6" Laptop
    CPU
    Core i5-1135G7
    Motherboard
    LG
    Memory
    16GB M.2 2280 NVMe SSD
    Graphics card(s)
    Integrated - Intel Iris Xe Graphics
    Sound Card
    Onboard sound
    Monitor(s) Displays
    15.6" IPS Display
    Screen Resolution
    Full HD 1920 x 1080
    Hard Drives
    512 GB
    Browser
    EDGE
I used WU to update from b27913, it worked smooth.
Only a slight delay during the restart install part.
I ran the built-in Disk Cleanup after a few misc. app. tests & I gained 15.8GB of space.

View attachment 143258
Thanks for sharing your experience. I am glad it went well.
In all honesty, I doubt you gained 15.8GB of space since those were installation files & the previous version of Windows.
 

My Computers

System One System Two

  • OS
    All Branches but Release
    Computer type
    Laptop
    Manufacturer/Model
    Acer Nitro ANV15-51
    CPU
    AMD Ryzen 7 7735HS 3200-4500 Mhz 8 cores x 2
    Motherboard
    Sportage_RBH
    Memory
    32 GB DDR5
    Graphics Card(s)
    Radeon Graphic / NVIDIA GeForce RTX 4060 8 GB GDDR6
    Sound Card
    AMD/Realtek(R) Audio
    Monitor(s) Displays
    Integrated Monitor (15.3"vis)
    Screen Resolution
    FHD 1920X1080 16:9 144Hz
    Hard Drives
    KINGSTON OM8SEP4512Q-AA 1TB
    Western Digital 256GB
    PSU
    19V DC 6.32 A 120 W
    Cooling
    Dual Fans
    Mouse
    MS Bluetooth
    Internet Speed
    Fiber 1GB Cox -us & 1GB Orange-fr
    Browser
    Edge Canary- Firefox Nightly-Chrome Dev-Chrome Dev
    Antivirus
    Windows Defender
  • Operating System
    Windows 11 Beta
    Computer type
    Laptop
    Manufacturer/Model
    Asus X751BP
    CPU
    AMD A9-9420
    Memory
    8 GB of DDR4
    Graphics card(s)
    AMD Radeon R5
    Screen Resolution
    1600x900
    Hard Drives
    Seagate 1 TB
Thanks for sharing your experience. I am glad it went well.
In all honesty, I doubt you gained 15.8GB of space since those were installation files & the previous version of Windows.
Thanks OAT.
That may be but my # came for the disk space gained was taken from the MS Disk Cleanup number (attached)

Win11 b27928.1_ 1cDiskCleanup.webp
 

My Computers

System One System Two

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self made in 2023
    CPU
    i7-12900K @ 3.2 GHz
    Motherboard
    ASUS ROG Maximus Z790 APEX
    Memory
    2/16 GB Critical DDR5
    Graphics Card(s)
    GeForce RTX 3060 Ti
    Sound Card
    On board sound
    Monitor(s) Displays
    27 inch LED
    Hard Drives
    1 TB Samsung SSD w/ 3 partitions
    250 GB Samsung SSD for WSE 2016 BU OS
    1 TB Samsung SSD (Storage)
    PSU
    RM850x SHIFT 80 PLUS Gold Fully Modular
    Case
    Fractal Design Define 7 Compact - Mid Tower
    Browser
    EDGE
  • Operating System
    Windows 11 Pro x2
    Computer type
    Laptop
    Manufacturer/Model
    LG gram 15, 15.6" Laptop
    CPU
    Core i5-1135G7
    Motherboard
    LG
    Memory
    16GB M.2 2280 NVMe SSD
    Graphics card(s)
    Integrated - Intel Iris Xe Graphics
    Sound Card
    Onboard sound
    Monitor(s) Displays
    15.6" IPS Display
    Screen Resolution
    Full HD 1920 x 1080
    Hard Drives
    512 GB
    Browser
    EDGE
Thanks OAT.
That may be but my # came for the disk space gained was taken from the MS Disk Cleanup number (attached)

View attachment 143264
Yes, of which are:
11.5 GB from Previous Windows Installation(s) as listed
1.2 GB from Delivery Optimization Files not listed
1.0 GB from temp files not listed
more from Upgrade log files not listed
As stated, you did not gain anything that you did not have prior to the installation.
 

My Computers

System One System Two

  • OS
    All Branches but Release
    Computer type
    Laptop
    Manufacturer/Model
    Acer Nitro ANV15-51
    CPU
    AMD Ryzen 7 7735HS 3200-4500 Mhz 8 cores x 2
    Motherboard
    Sportage_RBH
    Memory
    32 GB DDR5
    Graphics Card(s)
    Radeon Graphic / NVIDIA GeForce RTX 4060 8 GB GDDR6
    Sound Card
    AMD/Realtek(R) Audio
    Monitor(s) Displays
    Integrated Monitor (15.3"vis)
    Screen Resolution
    FHD 1920X1080 16:9 144Hz
    Hard Drives
    KINGSTON OM8SEP4512Q-AA 1TB
    Western Digital 256GB
    PSU
    19V DC 6.32 A 120 W
    Cooling
    Dual Fans
    Mouse
    MS Bluetooth
    Internet Speed
    Fiber 1GB Cox -us & 1GB Orange-fr
    Browser
    Edge Canary- Firefox Nightly-Chrome Dev-Chrome Dev
    Antivirus
    Windows Defender
  • Operating System
    Windows 11 Beta
    Computer type
    Laptop
    Manufacturer/Model
    Asus X751BP
    CPU
    AMD A9-9420
    Memory
    8 GB of DDR4
    Graphics card(s)
    AMD Radeon R5
    Screen Resolution
    1600x900
    Hard Drives
    Seagate 1 TB
I meant you should still write about the problem since at least in #5883, it mentions it is failing to integrate something when building the ISO which is probably one of the reasons why the ISO does not work correctly. If you don't mention the problem, they will not know about it and the problem will be there in new builds as well as the script probably needs to be updated.
I tried downloading the ISO 27928 from Deskmodder, it updates successfully and creates the exact same problems as the uupdump created Canary ISOs.


UUPDUMP created ISO:
1756077818368.webp


Prebuilt ISO from DESKMODDER:

1756077888054.webp
 

My Computer

System One

  • OS
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell XPS 8930
    CPU
    Intel I9-9900K
    Memory
    64GB
    Graphics Card(s)
    NVIDIA RTX 2060
    Sound Card
    NVIDIA High Definition Audio
    Monitor(s) Displays
    4k Samsung
    Screen Resolution
    3840 x 2160
    Hard Drives
    512GB NVMe, ADATA SU 800, 2TB HDD
@Almighty1

I tried a clean install with 27928.1 ISO created from uupdump, the installation completes fine.
But then I see the same issues that I saw with the in-place updates done with the same ISOs.
Cannot update many Apps from the MS Store and some other ones that update cannot open. 🤣🤣🤬🤷‍♂️

We'll see what happens with the next build ISO, this is definitely broken. 😎

1756185773405.webp


1756186186852.webp
 
Last edited:

My Computer

System One

  • OS
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell XPS 8930
    CPU
    Intel I9-9900K
    Memory
    64GB
    Graphics Card(s)
    NVIDIA RTX 2060
    Sound Card
    NVIDIA High Definition Audio
    Monitor(s) Displays
    4k Samsung
    Screen Resolution
    3840 x 2160
    Hard Drives
    512GB NVMe, ADATA SU 800, 2TB HDD
 

My Computers

System One System Two

  • OS
    Windows 11 Pro for Workstations
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom self build
    CPU
    Intel i7-8700K 5 GHz
    Motherboard
    ASUS ROG Maximus XI Formula Z390
    Memory
    64 GB (4x16GB) G.SKILL TridentZ RGB DDR4 3600 MHz (F4-3600C18D-32GTZR)
    Graphics Card(s)
    ASUS ROG-STRIX-GTX1080TI-O11G-GAMING (11GB GDDR5X)
    Sound Card
    Integrated Digital Audio (S/PDIF)
    Monitor(s) Displays
    2 x Samsung Odyssey G75 27"
    Screen Resolution
    2560x1440
    Hard Drives
    1TB Samsung 990 PRO M.2,
    4TB Samsung 990 PRO M.2,
    TerraMaster F8 SSD Plus NAS
    PSU
    Seasonic Prime Titanium 850W
    Case
    Thermaltake Core P3 wall mounted
    Cooling
    Corsair Hydro H115i
    Keyboard
    Amazon Basics Wired Full Keyboard MD005
    Mouse
    Logitech MX Master 4
    Internet Speed
    2 Gbps Download and 100 Mbps Upload
    Browser
    Chrome and Edge
    Antivirus
    Microsoft Defender
    Other Info
    Logitech Z625 speaker system,
    Logitech BRIO 4K Pro webcam,
    HP Color LaserJet Pro MFP M477fdn,
    CyberPower CP1500PFCLCD
    Galaxy S23 Plus phone
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Surface Laptop 7 Copilot+ PC
    CPU
    Snapdragon X Elite (12 core) 3.42 GHz
    Memory
    16 GB LPDDR5x-7467 MHz
    Monitor(s) Displays
    15" HDR
    Screen Resolution
    2496 x 1664
    Hard Drives
    1 TB SSD
    Internet Speed
    Wi-Fi 7 and Bluetooth 5.4
    Browser
    Chrome and Edge
    Antivirus
    Microsoft Defender
I tried downloading the ISO 27928 from Deskmodder, it updates successfully and creates the exact same problems as the uupdump created Canary ISOs.


UUPDUMP created ISO:
View attachment 143276


Prebuilt ISO from DESKMODDER:

View attachment 143277

Not familiar with Deskmodder but how did Deskmodder actually build the ISO because maybe it also used uupdump or something similar to uupdump's method which is why the same problem still exists. Also, been wanting to ask you a question about the built-in Windows Update Repair install. When you used it, did it do everything inside Windows Update as I tried it on Beta and it downloaded, installed and completed all in Windows Update. Unlike a Windows update to a new build or using the UUPDump ISO to do a in-place repair install, it does not require a reboot and does not update anything when one reboots. Reason I am asking is my notebook motherboard did have issues where the machine will reboot randomly within seconds to minutes and sometimes a few hours from the spinning part at the POST screen, it turned out one of the capacitors eventually burn down and the machine no longer powered on and sometime during May 2025, when I did the Windows Update Repair install, it corrupted the WinRE file so it was no longer working and yesterday I did do a Windows Update based repair install and while it did the download, install and complete while in Windows Update after I already updated to 26120.5761, it did not require rebooting and rebooting didn't seem to have the updating files process like I see with the normal UUPDump ISO in-place repair upgrade install or when Windows Updating to a new build and the WinRE file is still corrupted so it never touched the WinRE like a in-place repair install would.
 

My Computer

System One

  • OS
    WindowsXP/7/8/8.1/10/11,Linux,Android,FreeBSD Unix
    Computer type
    Laptop
    Manufacturer/Model
    Dell XPS 15 9570
    CPU
    Intel® Core™ i7-8750H 8th Gen 2.2Ghz up to 4.1Ghz
    Motherboard
    Dell XPS 15 9570
    Memory
    64GB using 2x32GB CL16 Mushkin redLine modules
    Graphics Card(s)
    Intel UHD 630 & NVIDIA GeForce GTX 1050 Ti with 4GB DDR5
    Sound Card
    Realtek ALC3266-CG
    Monitor(s) Displays
    15.6" 4K Touch UltraHD 3840x2160 made by Sharp
    Screen Resolution
    3840x2160 4K UltraHD
    Hard Drives
    Samsung MZ-V9P4T0B/AM 990 PRO 4TB PCIe®4.0 NVMe™ M.2 SSD was Toshiba KXG60ZNV1T02 NVMe 1TB SSD
    PSU
    Dell XPS 15 9570
    Case
    Dell XPS 15 9570
    Cooling
    Stock
    Keyboard
    Stock
    Mouse
    SwitftPoint ProPoint
    Internet Speed
    Comcast/XFinity 1.44Gbps/42.5Mbps
    Browser
    Microsoft EDGE (Chromium based) & Google Chrome
    Antivirus
    Windows Defender that came with Windows
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