Files required to use Windows Update are no longer registered or installed on your computer
Solution:
This problem can be corrected by re-registering the various dll files that Windows Update requires to run.
To do this firstly click on the “Start” button then “Run” and enter the following command into the “Run” dialog box
· regsvr32 wuapi.dll
You should then receive a message to say it was successful. The above process then needs to be done for each of the following commands:-
· regsvr32 wups.dll
· regsvr32 wuaueng.dll
· regsvr32 wucltui.dll
· regsvr32 atl.dll
· regsvr32 msxml3.dll