Windows update KB5051974 Error 0x80073701

I'm having this error 0x80073701 on update KB5051974 on a freshly installed Windows 10, I tried installing the update manually from the microsoft Catalogue Microsoft Update Catalog, I also tried the commands

sfc /scannow
dism /online /cleanup-image /restorehealth
dism /online /cleanup-image /startcomponentcleanup

I also tries cleaning the windows update:

net stop wuauserv
net stop cryptsvc
net stop bits
net stop msiserver
ren C:\Windows\SoftwareDistribution SoftwareDistribution.old 
ren C:\Windows\System32\catroot2 catroot2.old
net start wuauserv 
net start cryptsvc 
net start bits 
net start msiserver

I also tried disk-clean and disk optimization, still the same error, all updates installed successfully except KB5051974, why is the error happening and how do I fix it?

ImageImageImageImage

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0x80073701

ERROR_SXS_ASSEMBLY_MISSING; The referenced assembly couldn't be found.

Typically, a component store corruption caused when a component is in a partially installed state.

Repair the component store with Dism RestoreHealth command or manually repair it with the payload from the partially installed component. From an elevated command prompt, run these commands:


Dism.exe /Online /Cleanup-Image /Restorehealth

Sfc.exe /Scannow
Restart the device.

If that doesn't help, do one of the following.

Fix the CBS key

Backup the registry using Acelogix RegBak. Then, use the PowerShell script in this thread to fix the CBS key.

https://www.reddit.com/r/sysadmin/comments/1fda3gu/comment/lmzzbe2/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1

(or)

Repair install using MCT

1) Download Windows 10 Media Creation Tool (MCT) from this link:

https://go.microsoft.com/fwlink/?LinkId=2265055

 

2) Run MCT and accept the license agreement.

 

3) Click "Upgrade this PC now". This starts the repair installation.

 

Your apps, settings, and files will be kept by default during a repair install/in-place upgrade.

 

See also:

 

Reinstall Windows - Microsoft Support:

https://support.microsoft.com/en-us/windows/reinstall-windows-d8369486-3e33-7d9c-dccc-859e2b022fc7

______________________________________________________________________________________________________
Ramesh, Windows Shell MVP 2003-2012.
If this post resolves your issue, pls mark it as an Answer.

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With problems after a clean install > perform a new clean install with a new iso

Clean Install Windows 10 | Tutorials

Some other possible options:

Reset Windows 10 | Tutorials

Refresh Windows 10 | Tutorials

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Last updated April 20, 2025 Views 4,332 Applies to: