How to Register Dll Files to Fix a Windows Update

1. Go to the 'Start' menu, type 'run' in the 'Start Search' box and press 'Enter.'
2. Type 'Regsvr32 'C:\Windows\System32\wuapi.dll' in the search field and press 'Enter.' Click 'OK' in the confirmation pop-up to register the DLL.
3. Repeat Step 2 for 'wuaueng.dll,' 'wups.dll,' 'wups2.dll,' 'wuwebv.dll,' 'wucltux.dll' and 'wudriver.dll.'
4. Restart your computer.