Can't Fix Error Code 0x80070643

Question

Started with the procedures from https://answers.microsoft.com/en-us/windows/forum/windows\_10-windows\_install/error-0x80070643/3061d2e6-0af1-4d4d-a37c-aa59746776e1.

That didn't solve the problem, so I went to https://windows10.help/blogs/entry/23-troubleshoot-windows-update-problems-in-windows-10-using-these-five-tips/:

Troubleshooter didn't provide a fix.

Media Creation Tool wouldn't run (message that it is incompatible with my PC). 

Deployment Image Servicing and Management was completed successfully, but I still couldn't update windows (still got Error Code 0x80070643). 

Delete the Software Distribution Folder already done as one of the steps of https://answers.microsoft.com/en-us/windows/forum/windows\_10-windows\_install/error-0x80070643/3061d2e6-0af1-4d4d-a37c-aa59746776e1.

Perform a Repair Upgrade and the two bonus items won't work because one of the other problems I am having is that whenever I try to download something I get a message that the download failed because the file contains a virus.

So, now I am in a Catch 22. Can't install Windows Defender virus definition, but something is saying all files downloaded are corrupt.

Another thing that cropped up while I was dealing with all of this is that I can no longer access BIOS setings.

Please help.

Answer 1

If the error relates to Windows Defender, try installing the latest cumulative update manually:

You can also download and install the latest definitions at the following link:

32 bit:

https://go.microsoft.com/fwlink/?LinkID=121721&...

64 bit:

https://go.microsoft.com/fwlink/?LinkID=121721&...

Source:

https://www.microsoft.com/en-us/wdsi/definitions

Answer 2

As you can see in my initial post in this thread, I already did that and then some. The only update not installed indicated in Update and Security is Windows Defender, which is what gives me the Error Code 0x80070643. So it looks like I've come full circle with you this thread. Anybody else want to chime in?

Answer 3

17134.137 is the latest installed cumulative update at this time for Windows 10 1803.

If you are getting prompts to install additional updates, it might be a glitch.

Before carrying out this procedure, disconnect from the Internet. That means turning off Wi-Fi and disconnecting from a wired connection. If you don't, Windows 10 will indicate some files are in use and cannot be modified or the command will be non-responsive. Also, you should restart your computer after disconnecting from the Internet. The easiest way to do it is to enable Airplane mode from the Action Center - Windows key + A.

Open Start, type: CMD

Right click CMD

Click Run as administrator

Type each of the following then hit Enter

taskkill /f /fi "SERVICES eq wuauserv" (Do this multiple times)

net stop cryptSvc

net stop bits

net stop msiserver

ren C:\Windows\SoftwareDistribution SoftwareDistribution.old

rmdir C:\Windows\SoftwareDistribution\DataStore

rmdir C:\Windows\SoftwareDistribution\Download

When complete, hit Enter, then restart, then try updating again.

If that does not work..

1. Open Start, type: CMD

Right click CMD

Click Run as administrator

Type each of the following then hit Enter

Run these codes:

Net Stop bits

Net Stop wuauserv

Net Stop appidsvc

Net Stop cryptsvc

Ren %systemroot%\SoftwareDistribution SoftwareDistribution.bak

Ren %systemroot%\system32\catroot2 catroot2.bak

Net Start bits

Net Start wuauserv

Net Start appidsvc

Net Start cryptsvc

After running these commands, check if your issue is fixed.

Try this additional tips to see if they work:

Troubleshoot Windows Update Problems in Windows 10 Using These Five Tips

https://windows10.help/blogs/entry/23-troublesh...

Answer 4

Tried to use the Recovery Media to reinstall Windows 10 Pro on this PC that I've had about a month. Version 1803 (OS Build 17134.137)

Answer 5

Are you trying to apply a regular update or upgrade to a newer version of Windows 10?

Which version of Windows 10 is currently installed? See how to verify:

https://answers.microsoft.com/en-us/windows/wik...