Live Assist-Support for Microsoft productsWindows Update_643
(Last Updated On: February 26, 2018)
How To Fix Windows Update_643:
Windows Update_643 Description: This issue may occur if the MSI software update registration has become corrupted, or if the .NET Framework installation on the computer has become corrupted.
Solution for Windows Update_643: To resolve this issue, try one or more of the following methods
Method 1: Fix MSI software update registration corruption issues
- Visit Windows Update, and then try to install the updates again.
- Try to re install the .NET Framework update.
If the issue is not resolved, go to method 2.
Method 2: Repair the .NET Framework
re install the .NET Framework update:
- The .NET Framework 4
- The .NET Framework 3.5 SP1
- The .NET Framework 3.0 SP2
- The .NET Framework 2.0 SP2
If the issue is not resolved, or if you are using other versions of the .NET Framework, go to method 3.
Method 3: Uninstall and re install the .NET Framework
Use the .NET Framework Cleanup Tool to uninstall multiple versions of the .NET Framework, and then re install the components.
Restart the computer.
Visit Windows Update again, and then check for and install updates.
Try to re install the .NET Framework update.
If the issue persists, its time for a PC checkup by our technical expert:
Computers perform best when they receive regular, professional maintenance. The installation and un-installation of software, hardware, and drivers often leave remnants behind in your registry, resulting in a tangle of unused applications, broken drivers, and incomplete and empty command signals. This mass of confusion slows down your computer and if not addressed promptly can lead to serious problems such as computer freezing, programs not responding, and system crashes.
Chat with our Technical Experts for further help and support
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