Windows 10: Unable to install Windows update, got error 0x80070643

I have received the new 2024-01 Security Update for Windows 10 Version 22H2 for x64-based Systems KB503444. I have tried downloading and installing the update, and suddenly I get this following error message:There were some problems installing updates, but we'll try again later. If you keep seeing this and want to search the web or contact support for information, this may help: 0x80070643 I tried all the solutions including retrying the install process and restarting the laptop, but it doesn't work.If anyone is experiencing this same problem, any help and solution might be appreciated. Th

:)

 

Unable install update in windows 10 Error 0x80070643

Hi David,

Thank you for your interest in Windows 10.

Please provide us certain information to narrow down the issue:

• What is the make and model of your computer?
• Which security program is installed on your computer?

I would suggest you to follow the steps from the article below and check if it helps.

.NET Framework update installation error: "0x80070643" or "0x643"


https://support.microsoft.com/kb/976982

Note: The troubleshooting steps in the above links are meant for windows 8, however, you can use the same for windows 10 as well.

Hope the information helps. Feel free to reply to us for further assistance and we’ll be more than happy to help.

 

error 0x80070643 (update)

Hey

Try to apply the update manually As suggested by Microsoft. I just wrote a
step by step guide.

However be sure that the update itself is downloaded and that the installation part is failing, and not the downloading part.

Hope it helps you

 

Error 0x80070643 and Error 1336 When trying to Install Windows updates or C++ Redistributables Windows 10

Thank you for your help!

After running Windows Update Troubleshooter I see the following:

"Windows Update Components Must Be Repaired" = Fixed

"Service registration is missing or corrupt. Reset Service Registration" = Completed

I then followed instruction under your next suggestions:

'what can I try if I'm having problems installing an update'

and read and followed the thread:

http://answers.microsoft.com/en-us/windows/forum/windows_10-update/windows-update-error-0x80070643/44928a3e-1810-44eb-86e8-1d3d3a06730c

I was unable to complete step 3: "Ren %systemroot%\system32\catroot2 catroot2.bak" As it said it was in use.

I did complete all other steps.

I restarted the PC and retried Windows Update, and it downloads them, then fails again. Same error 0x80070643