Known and Resolved issues for Windows 11 version 26H2

Windows message center:

Windows 11 version 26H2 End of Servicing on October 10, 2028

Windows 11 version 26H2 build 26300.9550 now generally available

Windows IT Pro Blog: Windows 11, version 26H2 is now generally available, delivering the next annual feature update for Windows 11. Built on the same servicing foundation as Windows 11, versions 25H2 or 24H2, version 26H2 continues Microsoft focus on providing a predictable, low-disruption...

www.elevenforum.com

How to get the Windows 11 2026 version 26H2 Update

Windows Blogs: Windows powers how people around the world work, learn, create, and connect every day. Today, we’re announcing the availability of the Windows 11 2026 Update, also known as Windows 11, version 26H2. Built on the same servicing foundation as recent Windows 11 releases, version 26H2...

www.elevenforum.com

What's new in Windows 11, version 26H2 for IT pros

Learn more about what's new in Windows 11, version 26H2, including servicing updates.

learn.microsoft.com

Current status as of September 29, 2026

Windows 11, version 26H2 has reached general availability. This new version contains all the recently announced features in Windows 11, versions 25H2 and 24H2 and will be delivered using servicing technology, providing a fast installation experience.

The rollout is phased and will expand over the next few months. Starting today, version 26H2 is available on eligible Windows 11, version 25H2 and version 24H2 devices for users who have turned on the setting Get the latest updates as soon as they’re available. If the update is ready for your device, it will download and install automatically, and a single restart will complete the process.

For more details on how to install Windows 11, version 26H2, watch this video.

Known issues

Windows 11, version 26H2 known issues and notifications

View announcements and review known issues and fixes for Windows 11, version 26H2

learn.microsoft.com

Resolved issues

Resolved issues in Windows 11, version 26H2

learn.microsoft.com

Last edited: Today at 2:37 PM

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garlin

Well-known member

Guru

VIP

Today at 1:41 PM

File History will be one of the first known issues, since not everyone on .9457 reported it being fully restored.

My Computer

At a glance

Windows 7

OS: Windows 7

Ghot

Well-known member

Guru

VIP

Today at 2:20 PM

I love how MS can't just "list" the known and resolved issues. :/

My Computers

System One System Two

At a glance
Win 11 Home ♦♦♦26300.9550 ♦♦♦♦♦♦♦26H2AMD Ryzen 7 3700XG.Skill (F4-3200C14D-16GTZKW)EVGA RTX 2070 (08G-P4-2171-KR)

OS
Win 11 Home ♦♦♦26300.9550 ♦♦♦♦♦♦♦26H2
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?

Josey Wales

Endeavor to Persevere

Guru

VIP

Today at 2:23 PM

Ghot said:
I love how MS can't just "list" the known and resolved issues. :/

They forgot the known known's and the unknown unknowns......

My Computers

System One System Two

At a glance
Windows11 Pro 26300.9550Intel Core i9 14900F (24 -Core, 68 MB Total C...32GB DDR5RTX 4080 Super w/610..88

OS
Windows11 Pro 26300.9550
Computer type
PC/Desktop
Manufacturer/Model
Dell Alienware Aurora R16
CPU
Intel Core i9 14900F (24 -Core, 68 MB Total Cache)
Motherboard
Dell Alienware
Memory
32GB DDR5
Graphics Card(s)
RTX 4080 Super w/610..88
Sound Card
Realtec
Monitor(s) Displays
Corsair XENEON 32QHD165
Screen Resolution
2560 X 1440
Hard Drives
1-2TB Samsung 990 Pro PCIe NVMe M2 SSD
1-4TB Samsung 990 Pro PCIe NVMe M2 SSD
PSU
1000 Watt Platinum Dell
Case
Alienware
Cooling
Liquid Closed Loop
Keyboard
Corsair Strafe RGB
Mouse
Logitech MK270 Wireless
Internet Speed
100Gb's Down-20 Up
Browser
Firefox 157.0
Antivirus
Defender
Other Info
Very Quiet And Fast
CyberPower UPS CP1500PFCLCD
At a glance
MX-Linux13th Gen Inter(R) Core(TM) i3-1315U64 GB DDR4 @3200 MHz.Internal

Operating System
MX-Linux
Computer type
PC/Desktop
Manufacturer/Model
Intel
CPU
13th Gen Inter(R) Core(TM) i3-1315U
Motherboard
Intel
Memory
64 GB DDR4 @3200 MHz.
Graphics card(s)
Internal
Sound Card
None
Monitor(s) Displays
Dell 2419HGCF
Screen Resolution
1920 X 1080
Hard Drives
SAMSUNG 980 PRO SSD 2TB, PCIe 4.0 M.2 2280
PSU
Chicony 30 Watt
Case
Small
Keyboard
Dell
Mouse
Razor
Internet Speed
1GB
Browser
Slimjet

Ghot

Well-known member

Guru

VIP

Today at 2:25 PM

Josey Wales said:
They forgot the known known's and the unknown unknowns......

I think they're too ashamed to just list all the issues.

My Computers

System One System Two

At a glance
Win 11 Home ♦♦♦26300.9550 ♦♦♦♦♦♦♦26H2AMD Ryzen 7 3700XG.Skill (F4-3200C14D-16GTZKW)EVGA RTX 2070 (08G-P4-2171-KR)

OS
Win 11 Home ♦♦♦26300.9550 ♦♦♦♦♦♦♦26H2
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?

Josey Wales

Endeavor to Persevere

Guru

VIP

Today at 2:36 PM

Ghot said:
I think they're too ashamed to just list all the issues.

"There are things we know we know we also know there are known unknowns that is to say we know there are some things we do not know." Don Rumsfeld.

My Computers

System One System Two

At a glance
Windows11 Pro 26300.9550Intel Core i9 14900F (24 -Core, 68 MB Total C...32GB DDR5RTX 4080 Super w/610..88

OS
Windows11 Pro 26300.9550
Computer type
PC/Desktop
Manufacturer/Model
Dell Alienware Aurora R16
CPU
Intel Core i9 14900F (24 -Core, 68 MB Total Cache)
Motherboard
Dell Alienware
Memory
32GB DDR5
Graphics Card(s)
RTX 4080 Super w/610..88
Sound Card
Realtec
Monitor(s) Displays
Corsair XENEON 32QHD165
Screen Resolution
2560 X 1440
Hard Drives
1-2TB Samsung 990 Pro PCIe NVMe M2 SSD
1-4TB Samsung 990 Pro PCIe NVMe M2 SSD
PSU
1000 Watt Platinum Dell
Case
Alienware
Cooling
Liquid Closed Loop
Keyboard
Corsair Strafe RGB
Mouse
Logitech MK270 Wireless
Internet Speed
100Gb's Down-20 Up
Browser
Firefox 157.0
Antivirus
Defender
Other Info
Very Quiet And Fast
CyberPower UPS CP1500PFCLCD
At a glance
MX-Linux13th Gen Inter(R) Core(TM) i3-1315U64 GB DDR4 @3200 MHz.Internal

Operating System
MX-Linux
Computer type
PC/Desktop
Manufacturer/Model
Intel
CPU
13th Gen Inter(R) Core(TM) i3-1315U
Motherboard
Intel
Memory
64 GB DDR4 @3200 MHz.
Graphics card(s)
Internal
Sound Card
None
Monitor(s) Displays
Dell 2419HGCF
Screen Resolution
1920 X 1080
Hard Drives
SAMSUNG 980 PRO SSD 2TB, PCIe 4.0 M.2 2280
PSU
Chicony 30 Watt
Case
Small
Keyboard
Dell
Mouse
Razor
Internet Speed
1GB
Browser
Slimjet