How to Fix Windows Update Failed to Install–Error 0x80070643?

Hello everyone,Please let me know how to fix Windows Update failed to install–Error 0x80070643?.I tried many times but unable to fix it.So can anyone have any idea? help me

Morris Ivan 1   Ans 3 months ago
Answer - 1
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Windows Update Failed to Install–Error 0x80070643

Here’s how you can fix the Windows update error 0x80070643 issue:

1. Rename the Software Distribution Folder

Windows update error 0x80070643 might interrupt you from installing windows update or any other software. This issue may occur either due to the corruption of the MSI software update registration or if the .NET Framework installation on the computer has become corrupted.

To get rid of this issue, it is recommended to rename the software distribution folder. To rename the Software Distribution folder, open an elevated command prompt window, type the following commands one after the other, and hit Enter:

net stop wuauserv
net stop bits
rename c:\windows\SoftwareDistribution SoftwareDistribution.bak
net start wuauserv
net start bits

2. Clear Catroot2 Folder Contents

While the windows update process, the two important windows OS folders are required and they are Catroot and Catroot2. In case you are facing the issue amidst the windows update process by receiving a message - 0x80070643, then reset the Catroot2 folder. Below are the steps to reset:

Open an elevated Command Prompt, type the following command one after the other, and hit Enter:
net stop cryptsvc
md %systemroot%\system32\catroot2.old
xcopy %systemroot%\system32\catroot2 %systemroot%\system32\catroot2.old /s

Now delete all the contents of the Catroot2 folder. Once you are done with that, type the following in the CMD windows and press Enter:

net start cryptsvc

Lastly, once you start your windows update again, your catroot folder will be reset.

3. Run windows update troubleshooter

At times, when you try to install the latest update from windows update, you receive a  Windows update error 0x80070643 message. The windows update troubleshooter proves to be helpful in resolving the issue. You might want to run it and see if it works.

4. Install windows updates in a clean boot state

Install windows updates in a clean boot state is an excellent idea as all the non-Microsoft processes & Services do not start in that state and so there can be no 3rd-party interference causing Windows Update to fail. Windows error 0x80070643 messages sometimes seem like a faulty software system or app update and may be the symptom of a range of technical school issues starting from a virus or malware infection to corrupted or deleted files associated with even an improper shutdown.

The 0x80070643 error generally seems throughout a Windows OS update or associate app installation or update process. When triggered throughout a Windows update error 0x80070643 seems at intervals the Update History screen once associate tried installation at intervals on the Windows Update page.

The error 0x80070643 message is typically the result of system settings being designed incorrectly, malware or infection, a driver malfunction, corrupted files, a system file having been deleted, or recent versions of programs that haven’t been properly removed once a replacement version was downloaded. A 0x80070643 error can even occur once a Windows computer or pill is packed up incorrectly or disconnected from an influence supply while in use.

We hope the above article helped you to resolve the Windows Update error 0x80070643 issue.

David 30 August 2022
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