Error 0x80070643 is associated with Windows Defender Antivirus on Windows computers and can be caused by corrupted drivers, programs, system files, or malware.
It can also be caused by corrupted MSI software update registration or .NET Framework installation.
To fix this issue, users can rename the SoftwareDistribution folder
, clear the Catroot2 folder contents
, and run the Windows Update Troubleshooter.
Additionally, they can repair the .NET Framework.
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Summaries from the best pages on the web
Windows Update can occasionally display error code 0x80070643 while updating system components such as Windows Defender and the Microsoft .NET Framework to their latest versions. Rarely, it could also show up while installing quality and cumulative Windows system updates.
10 Best Ways to Fix Windows Update Error 0x80070643 - Help Desk Geek
The 0x80070643 update error is associated with Windows Defender Antivirus on your Windows computer. If Windows Update has failed to update Windows Defender and shows you this error, you can try fixing it by updating the antivirus on your own.
Fix “0x80070643” Windows Update or Installation Errors on Windows
The steps provided here should help fix any errors that come up during the Windows Update process. How does it work? We’ll begin by asking you questions about the Windows …
Fix Windows Update errors - Microsoft Support
Update error 0x80070643 is relatively common and can be caused by several factors. It is mainly caused due to a corrupted driver, program, or system files. Moreover, if your PC is infected with malware, it could likely cause the update error 0x80070643.
How to Fix Windows Update Install Error 0x80070643 - MUO
Select Start > Settings > System > Troubleshoot > Other troubleshooters. Next, under Most frequent, select Windows Update > Run. When the troubleshooter is finished running, it's a good idea…
Windows Update Troubleshooter - Microsoft Support
Press Start then click Settings (Gear icon), select System then About. Please try the following methods below. **Run the Windows Update Troubleshooter Press Start then click Settings (Gear icon) Select…
How to Fix Error 0x80070643 - Microsoft Community