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)
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Anonymous
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
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Anonymous
2024-06-23T21:31:58+00:00 I downloaded and ran the win11 iso, but it errored out. Then I retried the Windows Update and it started with 22h2 but failed again on 23h2. This is very disappointing. Past Windows Updates were far easier to apply successfully.
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Anonymous
2024-02-19T03:46:11+00:00 Thank you very much for your assistance. The updates have been successfully installed now. Initially, I hesitated to repair Windows using the ISO because I was concerned about losing my apps. However, after reading through the link you provided, I learned that it'll also recover my apps afterward.
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Anonymous
2024-02-19T02:02:55+00:00 Yes, I attempted it again with the new error that appeared, and the output provided was from that attempt.
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Jonathan Deives 67,900 Reputation points Independent Advisor2024-02-19T01:59:55+00:00 Have you tried using it now with the new error that appeared?