Eventually I got through to microsoft support via chat. They talked me through reinstalling windows 11 and that fixed the issue.
windows 11version 25H2 couldn't install, error 0x80070476
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(44.800000000000004, 42%, 14%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESB%3C/text%3E%3C/svg%3E)
simon browne
5
Reputation points
any thoughts? I gather there is an issue with this update, I have never previously had issues and installed the October 25 updates without problems.
Windows for home | Windows 11 | Windows update
Answer recommended by moderator
Answer recommended by moderator
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simon browne 5 Reputation points
2025-10-23T15:18:06.2333333+00:00 -
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(32, 42%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESE%3C/text%3E%3C/svg%3E)
Steven Ekhoff 0 Reputation points2025-11-05T18:30:33.4466667+00:00 Reinstalling the OS should not be marked as the best answer. Good lord.
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Gunasekar N 63,675 Reputation points Independent Advisor2025-10-19T03:47:38.4+00:00 Hello, thank you for reaching out to Microsoft Q&A.
Error 0x80070476 occurs due to corrupted update files or Windows update components. You can first try these basic troubleshooting steps and see if it helps.
Option 1. Try running the Windows update troubleshooter.
Go to Start > Settings > System > Troubleshooter > Other troubleshooter > Windows update
Option 2. Run the System File Checker utility scan.
- Open the Command Prompt as an Administrator window.
- Execute these commands one by one and press Enter after each command.
Dism /Online /Cleanup-Image /ScanHealth Dism /Online /Cleanup-Image /CheckHealth Dism /Online /Cleanup-Image /RestoreHealth sfc /scannowOption 3. Reset Windows Update components
- Open the Windows PowerShell as an Administrator window.
- Execute these commands one by one and press Enter after each command.
net stop wuauserv net stop cryptSvc net stop bits ren C:\Windows\SoftwareDistribution SoftwareDistribution.old ren C:\Windows\System32\catroot2 Catroot2.old net start wuauserv net start cryptSvc net start bits netsh winsock resetOnce completed, restart your computer and install the updates. Let me know how it goes.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(150.4, 2%, 24%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ETP%3C/text%3E%3C/svg%3E)
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(265.6, 94%, 35%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EB%3C/text%3E%3C/svg%3E)
Benoit 0 Reputation points2025-10-23T12:07:56.3333333+00:00 I have the same issue but the above steps did not solve it.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(54.400000000000006, 96%, 15%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJW%3C/text%3E%3C/svg%3E)
Joe Walters 0 Reputation points2025-10-23T23:14:02.82+00:00 FWIW to anyone else, Option 1 did not solve the issue for me. Option 2 said it found corrupt files and repaired them but ultimately didn't fix it either (the install reaches 100% but then still errored out). Option 3 actually worked for me.EDIT: I take it back. Option 3 didn't work for me either. It said it was Complete and gave no indication of an error. But when I clicked Check for Updates, it then came back and said Windows 11 version 25H2 is available and that the last attempt failed. And again it's back to failing after reaching 100%.
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Benoit 0 Reputation points
2025-10-24T06:46:29.0733333+00:00 option 1 did not work for me, open 2 and 3 ran to the end without errors but did not solve the issue. What worked for me is this: https://learn.microsoft.com/nl-nl/answers/questions/5593436/windows-update-25h2-geeft-foutmelding-0x80070476 (manual install of 25H2)
However I have now the same issue with the next (security) update...
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(265.6, 40%, 35%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMR%3C/text%3E%3C/svg%3E)
Marcel Renard 0 Reputation points2025-10-25T22:24:14.3633333+00:00 Bonjour, merci pour les infos et après avoir suivi les étapes ci-dessus, j'ai redémarré mon PC et le problème n'a pas été résolu !! bonne soirée
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