How To Fix Windows Update Error 800B0100

Windows Update Error 800B0100

Error 800B0100 is often encountered by users while performing Windows update. Here we will discuss all of the fixes that’ll help you rid your system of the error.

How To Fix Error 800B0100

As I mentioned above this Error 800B0100 is encountered by users while updating Windows. There are a number of reasons why this error can pop up including firewall blocking Windows update, corrupt registry files and more. The following are the fixes for Error 800B0100.

Fix #1

The first fix for the error 800B0100 is repairing the registry files. Doing it manually can create problems and hence I recommend repairing it using Auslogics Registry Cleaner or a similar tool. This repairing tool will backup your existing registry files and then will search for the problem. Once the tool completes its operations, not only the error will be fixed but you’ll notice improved performance.

Fix #2

System Update Readiness Tool is another fix for the Windows 7 Update Error 800B0100. This tool was developed by Microsoft for the purpose of fixing update related errors and issues. Download and start the scan and don’t interupt it as it wil ltake a while and then it’ll repair the damaged or orrupt files to fix the Error 800B0100.

Fix #3

If the error is still persisting then your anti-virus software, Windows Defender or firewall might be causing the error. First, you must have administrative rights. Press “Windows + R” > type “Control Panel” and click OK > System and Security > Windows Firewall > Turn Windows Firewall On or Off. You’ll be taken to a new window and check the option to disable Windows Firewall off for both private and public networks. Apply the change and start the update and the error will be fixed.

Fix #4

Another fix for the error is to run System File Checker to repair corrupt Windows Files and here is how to fix Windows Update Error 800B0100. Click on start menu, type “CMD” and run it as administrator. Type “sfc/scannow” and press enter. Wait for the scan to complete and then restart your system. The error will be fixed.

Fix #5

Junk files on the system can also cause this error and cleaning them up will fix it. Click on start menu, type “CMD” and run it as administrator. Type “cleanmgr” and press enter. You’ll be given options for the files that you can clean up. Make your choice to delete the files and the error will be fixed.

Fix #6

If the error still persists then re-registering the Wintrust.dll file is your last resort to fix it. Click on start menu, type “CMD” and run it as administrator. Type the following commands and press enter after each of them.

  • regsvr32 wintrust.dll
  • net stop cryptsvc
  • ren %systemroot%\system32\catroot2 oldcatroot2
  • net start cryptsvc

Once these commands have been run, you can now update your Windows without Error 800B0100. That is all for our fixes for Windows Update Error 800B0100. If you are facing other errors and issues on your PC then also see our hub for commonly occurring PC errors and issues.

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