I decided to do a Windows Update as it was suggested it could help as I can't now watch videos that have been posted in Facebook. I don't normally do that as it appears to be updating automatically. It wouldn't update so I checked the update history and found that a particular update had been failing to update since 2011! I would appreciate advice as to why it isn't updating and how I can get it to update. The update is Windows 7 Service Pack 1 for x64-based Systems (KB976932) Error details: Code 80073712. When I check the error details it doesn't give an error code of 80073712 so I can't find out what to do. Any help would be appreciated.