Windows 10 - Windows Update fails - KB4579311 - 0x80073701

Question

Hello,

Windows Update fails as per above.

Also cannot add Windows features: same error

Have tried sfc and DISM; no errors reported.

Extract from CBS.log

2020-10-16 15:00:36, Error                 CSI    0000015b (F) HRESULT_FROM_WIN32(ERROR_SXS_ASSEMBLY_MISSING) #2408195# from Windows::ServicingAPI::CCSITransaction::ICSITransaction_PinDeployment(Flags = 0, a = Microsoft-Windows-ProjFS-Deployment, version 10.0.19041.1, arch amd64, nonSxS, pkt {l:8 b:31bf3856ad364e35}, cb = (null), s = (null), rid = 'Microsoft-Windows-ProjFS-Package~31bf3856ad364e35~amd64~~10.0.19041.1.0f1f6213531945ccfd5f99e2750305ed', rah = (null), manpath = (null), catpath = (null), ed = 0, disp = 0)[gle=0x80073701]

Appreciate suggestions to resolve

Thanks

VW

Answer 1

Hi, Sumit.

I have the same problem.

I tried to follow your guide by resetting windows update using the automatic script you shared through the link above, but the result is still the same.

It says "A current driver on your PC may be better than the driver we're trying to install. We'll keep trying to install."

Since yesterday, my laptop has been completely unresponsive (3 times yesterday and once today) that I have to hard shut down my laptop.

I'm afraid that it will fails my hard drive. I just changed my hard drive 4 months ago because the old one was fried. It's quite expensive and I don't want my new hard drive to be replaced again :(

Answer 2

My windows shows blue screen error and bow finally my hard drive crashed 😭😭

I tried to reinstall windows but hard disk isn't readable anymore its totally wasted😿😿😿

Answer 3

Thank you. Apparently, it looks like an assembly file is missing. Can you check if the Advanced troubleshooting steps here help you?

https://support.microsoft.com/en-in/help/408983...

Answer 4

Hello Sumit,

To the best of my knowledge Windows Updates have been working on this computer in the past.

The script reported that it completed successfully.

However after restarting the computer, the update failed as before.

Regards,

VW

Answer 5

Hi vw,

I am Sumit, an Independent Advisor and a 3 year Windows Insider MVP here to help.

Did the past month patches install successfully?

The first step would be to try resetting Windows updates using an automatic script. See:

http://www.yourwindowsguide.com/2015/12/windows...

Make sure you run the script as an administrator.

Please let us know if you need any assistance.

Disclaimer:

This is a non-Microsoft website which would provide accurate and safe information. Watch out for ads on the site which are frequently classified as a PUP (Potentially Unwanted Products). There is no need to buy paid products to fix your computers as they do more harm than good sometimes.