A while ago I ran the Disk Cleanup utility on my personal notebook. Today I needed to start the SQL server on this machine so I attempt to start the service and I get this error in the Event Viewer

So I made sure that the drive wasn't compressed, and it wasn't then I looked at the file itself and it was. I'm guessing that the Disk Cleanup deal performed this, because I know that I wouldn't. To solve this you right-click on the file and make sure that the checkbox shown is not checked.

Once you make sure this is done, you should be able to start the service again.

Sayed Ibrahim Hashimi