Windows 10: Update Install Fail 0x80073701

I have been having this issue for around a month now on my Lenovo laptop, and it's getting really frustrating. The 2021-05 Cumulative Update Preview for Windows 10 Version 20H2 for x64-based Systems KB5003214 update showed up, and every time it reaches the installing phase, it fails with error code 0x80073701. I had a series of performance issues, and suspected this was the cause of it, so I tried following guides to solve it, like restarting my update components through command prompt multiple times, and none of them ever worked. So I'm hoping someone has a solution, thank you in advance.

:)

 

Windows Updates failed to instal

I just did step one and they have just all installed.... thank you so much.... it was quite frustrating having that update window pop up every 5 minutes and failing to instal every time

Thanks mate

 

Updating Fails with Error 0x80073701

Hi all. Hopefully everyone is safe and well.

I have Windows 10 version 1909 OS build 18363.720 and am experiencing a problem with Windows Update. The problem is that the 2020-03 Cumulative Update for Windows 10 Version 1909 for x64-based Systems KB4541335 fails to install with error 0x80073701.

Here’s what I’ve tried so far to fix this issue with no success.
Downloaded the KB4541335 file directly from Microsoft and tried manually installing it.
Ran Windows Update Troubleshooter.
Reset Windows Update.
Ran sfc /scannow (no errors were found).

Here are my CBS log entries in case they help.
2020-04-13 12:17:41, Info CBS Exec: Processing complete. Session: 30806455_246946008, Package: Package_for_RollupFix~31bf3856ad364e35~amd64~~18362.752.1.9, Identifier: KB4541335 [HRESULT = 0x80073701 - ERROR_SXS_ASSEMBLY_MISSING]
2020-04-13 12:17:41, Info CBS Removing the pending hard reserve adjustment for Client: UpdateAgentLCU, Session: 30806455_246946008
2020-04-13 12:17:41, Error CBS Failed to perform operation. [HRESULT = 0x80073701 - ERROR_SXS_ASSEMBLY_MISSING]
2020-04-13 12:17:41, Info CBS Session: 30806455_246946008 finalized. Reboot required: no [HRESULT = 0x80073701 - ERROR_SXS_ASSEMBLY_MISSING]
2020-04-13 12:17:41, Info CBS Failed finalizing session [HRESULT = 0x80073701 - ERROR_SXS_ASSEMBLY_MISSING]
2020-04-13 12:17:41, Info CBS Failed to call Process on TiWorker session [HRESULT = 0x80073701]
2020-04-13 12:20:02, Info CBS Trusted Installer is shutting down because: SHUTDOWN_REASON_AUTOSTOP
2020-04-13 12:20:02, Info CBS Maint: idle processing paused
2020-04-13 12:20:02, Info CBS TiWorker signaled for shutdown, going to exit.

I would welcome any advice on how this might get resolved. Thanks.

 

Updating Fails with Error 0x80073701

Hi, there appear to be errors in your log. What was the final statement on the screen?

Looks like the two key things are the error number 0x80073701
and ERROR_SXS_ASSEMBLY_MISSING

Have you also checked absolute basics:
- check your disk (e.g. HDTune v2.55 free Health and Error Scan tabs
- if ok, run
chkdsk c: /scan
from an admin command or Powershell prompt

Post the summary results of those.

If ok please run this MS tool and post summary results:
How to Fix Your Windows 10 Update Errors With SetupDiag

Given your consistent error number see
3 Solutions to Fix Windows Update Error 0x80073701

https://www.thewindowsclub.com/windows-updates-failed-to-install-error-0x80073701

Note how this refers to part of your CBS.log

If all else fails, resort to an in-place upgrade repair install which keeps all progs and data and most settings. Tutorial available.