Windows update error 643 – Tips to fix

By Tech-Assured     
May 5, 2021  447 Views

Windows update error 643 – Tips to fix

To ensure smooth functioning of Windows, new updates are necessary but Error 643 stops your windows from updating.

Here at Tech-Assured, we provide assistance for all types of Windows errors as a part of our Server management service.

Let’s see the causes & fixes to it

Possible causes for Windows error 643

  • Corrupted files
  • Software conflicts
  • Registry issues
  • Malware infection


  • Step 1
    Sometimes, Windows updates might stop due to conflicts with third-party security             software. So, it is important to turn off the security software.
  • Step 2
    Malware attack can prevent Windows from updating which can cause Error 643. So you may run a malware scan using a third-party software or Windows defender.
  • Step 3
    Since the updates are downloaded online, network issues can also be a reason for Error 643. So, you need to check for network issues from control panel.
    Control panel > Network and Internet > Network and sharing center > Fix a network problem
  • Step 4
    If issue persists even after fixing the connectivity problems, then you may have to update network adapter drivers.
    Device manager > network adapter > update
  • Step 5
    If you are still getting the Error 643 even after following all the steps then you may try System restore option

Ask for helpOur Support Engineers at tech assured will walk you through all the steps…