Windows 10: WUpdate Always Gives Me Error 0x80070003

Hello. As the title says, every time I tried to install an update (especially KB5003173 and KB5003214) it fails during installation process on restart. It always says "We couldn't complete the update. Undoing changes". When I check it in event viewer, both gives me error 0x80070003 which I couldn't find the solution on Google. All of them says that I need to reset SoftwareDistribution folder, doing sfc scannow, dism etc etc but nothing works. Trying to force the update by manually downloading the .msu and installing it using wusa returns the same error message. One thing to note that this happened the first time when I tried to upgrade my Windows from 2004 to 20H2. That time when my PC was ready for 20H2, it tried to install but fails with the same error message. So what I do is forcing the upgrade using new Windows installation .iso file. Somehow that worked. What do I need to do here then? I'm already frustrated to solve this problem. Note that I have a lot of free space on C: so I didn't think it is the culprit. I need help on this. Thanks. Currently installed updates on my system. Currently my Windows version is 20H2-19042.870

:)

 

Error 0x80070003

Hi Nilton,

I suggest you to follow the steps given in the link below and check if it helps you. Select Windows 8.1 from the Product list.

Windows Update error "0x80070002" or "0x80070003"

Fix Windows Update errors

Let us know the status of the issue.

 

0x80070003

Hi,

In order to help you effectively, kindly provide us additional information.

• Is there a specific file where you getting the error?
• Have you tried any troubleshooting steps prior to the issue?

Error code 0x80070003, occurs when some files in the Windows Update are missing even though the update is downloaded and extracted successfully. In the meantime, you can run the

Windows Update Troubleshooter.

If the issue persists, you can refer to this link
for some troubleshooting steps.

Regards.

 

can't fix error 0x80070003

Hello,
I've upgraded 2 days ago and started receiving error code 0x80070003. I found instructions to fix the error. The first step is to run cmd as Admin, but it won't run as Admin - nothing happens. I can run with reduced privileges, but not as admin. I don't know if anything else is affected. Why is it not letting me run as Admin, and how can I fix it?

ver 20H2 build 19042.867