I could not complete because of an disk error? what does this mea
It probably means the action you were trying to take is trying to do something that isn't going to work.
What Adobe software are you using?
What did you do in that software to get that message?
What was the exact text of that message?
Is your hard drive full? I would start making some backups...
It could also mean your disk is slipping, it needs to be defragmented or it's starting to fail. Run some system diagnostics like the Windows check disk utility.
I always get this with a full hard drive.