Windows Update failed to install, Error 0x80070643

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The KB4048955 update for Windows 10 introduced roughly quality improvements and different elements that claimed to settle security vulnerabilities. However, a bug caused error 0x80070643 to pop up every clip the users tried to install the update. Error 0x80070643 is a broad Windows Update installation error encode that can appear on your computer screen during installation.

What does 0x80070643 mean?

Windows Error code 0x80070643 is an error caused during installing. It may live caused by a server-side problem and you may retry the installation OR insure the internet connection. Seek restarting the computer aft running the Windows Update Troubleshooter.

What do I do if Windows Update failed to install?

If Windows Update unsuccessful to install, you May prove again to put in information technology. Cancel Temporary Files and Browser Cache. If that doesn't work, manually resetting Windows Update Components to default. A few more solutions would be to run SFC and DISM, or the Windows Update Troubleshooter.

Fix Windows Update error 0x80070643

Here's what you can do to fix the military issue in Windows 10 Oregon Windows 11:

1] Rename the SoftwareDistribution folder

Error 0x80070643 can either stop you from installing Windows update or installing another software. This come forth may occur either due to the corruption of the MSI software update registration or if the .NET Theoretical account installation connected the computer has become corrupted.

To solve this, it is advisable to rename the SoftwareDistribution brochure. To rename the Software Distribution brochure, open an elevated overtop prompt windows, 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

Next clear the table of contents of the Catroot2 folder.

2] Clear Catroot2 folder contents

Catroot and Catroot2 are the some of the heavy Windows OS folders which are required while Windows Updates process. So, if you are facing the problem while updating your Windows and receiving error message – 0x80070643, then reset the Catroot2 folder.

To reset the catroot2 folder do this:

Agaze an elevated Prompt, case the following command one after the other and hit Enter:

mesh plosive speech sound cryptsvc

md %systemroot%\system32\catroot2.previous

xcopy %systemroot%\system32\catroot2 %systemroot%\system32\catroot2.old /s

Following, delete all the contents of the catroot2 folder.

Having done this, in the CMD windows, type the tailing and hit Enter:

net start cryptsvc

Your catroot folder will be reset, once you start Windows Update once again.

3] Run Windows Update Trouble shooter

Occasionally, when Windows users try to install the latest updates from Windows Update, they sometimes receive an error message – 0x80070643. The Windows Update Troubleshooter resolves galore of these errors so run it and see.

4] Set u Windows Updates in Clean Boot State

It is a righteous idea to install Windows Updates in Houseclean Boot State, since all non-Microsoft processes &adenylic acid; Services do no commencement in that land and so at that place can equal no 3rd-party interferences causation Windows Update to fail.

Wholly the best!

Anand Khanse is the Admin of TheWindowsClub.com, a 10-year Microsoft MVP (2006-16) & a Windows Insider MVP. Please show the entire post & the comments archetypical, create a System Restitute Point before making whatsoever changes to your system & be cautious about any 3rd-party offers patc installing freeware.