Windows Update could not be installed with Error 0x80070643
The update KB4048955 for Windows 10 brought some quality improvements and other elements that claimed to close the security holes. However, an error 0x80070643 caused each time users tried to install the update. Error 0x80070643 is a general Windows Update installation error code that may appear on your computer screen during installation.
Windows Update Error 0x80070643
Here’s what you can do to fix the problem.
Rename the SoftwareDistribution folder
An error 0x80070643 may prevent you from installing a Windows update or other software. This problem may occur due to corruption of the MSI software update registry or if the.NET Framework installation on the computer is corrupted.