Fix for Windows Update Error 0xC80003FB

1. Click Start, select Run, type "services.msc" and press enter

2. Now look for the "Automatic Updates" service and stop it

3. Click Start, select Run, type in: "%windir%\SoftwareDistribution" and press enter

4. Open the Datastore folder and delete its contents.

5. Try running the Windows Updates again.

Fix for Windows Defender not updating issue in Vista

 

Error message when you try to update Windows Defender on a Windows Vista-based computer: "Error found: Code 0x80240029"