2021-01 Cumulative Update for Windows Server 2016 for x64-based Systems (KB4598243) Error 0x8007301

Question

This error is followed within hours with a automatic reboot, then into a repair process that takes often 40 minutes.

Server is current on all windows except listed above and all Dell updates including bios are current.

This issue is a recent issue and cannot be ignored as it often occurs during work hours with office stacked up with patients.

Answer 1

Did you mean? 0x80073701 = ERROR_SXS_ASSEMBLY_MISSING which means there are some system files are missing, which caused the update installation failure. You can try

• sfc /scannow
• dism /online /cleanup-image /restorehealth
• the manual steps here https://learn.microsoft.com/en-us/windows/deployment/update/windows-update-resources#how-do-i-reset-windows-update-components
• a repair install by running setup.exe from the root of the install.

I wouldn't hold a lot of hope for this one, time may be better spent standing up a new one, patch it fully and migrate the roles or applications over to it.

--please don't forget to Accept as answer if the reply is helpful--

Answer 2

@Robert Mumm
Hi,
The error 0x80073701 may be caused by the missing system files.
To resolve the issue please try the following
Run the checksur.exe (System Update Readiness Tool) tool.
Run System File Checker. From the command line run the command sfc /scannow.
Examine the language packs installed on the system. Uninstall the unnecessary language packs.
Fix Windows Update errors by using the DISM or System Update Readiness tool
https://learn.microsoft.com/en-US/troubleshoot/windows-server/deployment/fix-windows-update-errors
If that doesn't work, you need to check the CBS.log and remove the patches.

Open the CBS.log, search the error_sxs_assembly_missing and check if there is any KB update related with it. Then reinstall it and run Windows update again to check whether the issue 0x80073701 is solved.
If there is no error of the CBS.log, you should execute the following command.
Dism /Online /Cleanup-Image /ScanHealth
This command can check for component store corruption.

Hope above information can help you.

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