Try to repair your Windows using ISO, this will repair the system files and update to the latest version.
Issue with Installing Windows 11 Version 23H2 Cumulative Update (KB5034765)
I am encountering difficulties installing the Cumulative Update for Windows 11 Version 23H2 for x64-based Systems (KB5034765) dated February 2024. The installation process is failing with the error code: 0x800f0831.
Windows for home | Windows 11 | Windows update
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
12 additional answers
Sort by: Most helpful
-
Jonathan Deives 66,525 Reputation points Independent Advisor2024-02-18T19:15:15+00:00 My name is Jonathan Deives. I'm an Independent Advisor and I will be happy to help you today.
Delete or rename the folder C:$WinREAgent. Note that it's a hidden folder.
See if you can install the update after that.
-
Anonymous
2024-02-19T01:25:22+00:00 Indeed, I've attempted downloading and installing the update manually as well, but unfortunately, it didn't yield any positive results.
-
Jonathan Deives 66,525 Reputation points Independent Advisor2024-02-19T00:59:55+00:00 Have you tried downloading and installing the update manually?
-
Anonymous
2024-02-19T00:57:39+00:00 Thank you for your assistance, Jonathan Deives. I have previously tried to rename the C:$WinREAgent folder. However, regrettably, this action did not yield the desired outcome, and I'm still unable to install the update.