When you try to install Windows 10 cumulative updates, you get the 0x800f0900 error. The CBS_E_XML_PARSER_FAILURE error code 0x800f0900 on Windows 10 updates suggests that certain system files involved in the update process are damaged. This post will address the main reasons behind the Windows 10 Update 20H2 Error 0x800f0900 as well as the fix that is required to fix the error.
Reasons of the Windows Update Error code 0x800f0900
Several reasons may cause this Windows 10 Update 20H2 Error Code 0x800f0900 issue, similar as
- Missing or corrupted files
- Malfunctioned services
- Configuration issues, and
- Other problems prompting the error
[KB9199290]-Solutions to resolve the Windows 10 Update Error 0x800f0900
Run Windows Update Troubleshooter
- Firstly, open the troubleshoot option in the Windows search box
- After that, click Troubleshoot settings and select the Additional troubleshooter’s option
- Next, click on Windows Update and also press the button Run the troubleshooter
Run System file Checker(SFC) checkup to fix windows update error 0x800f0900
- Open and select Command Prompt Run as administrator
- After that, type SFC/ Scan now command and press Enter key
- Let the command complete and then reboot the machine
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