Did you recently move any files over to another hdd or something, if you did what did you use?
did you reinstall steam?
TBH I wouldn't use windows to move over steam I would use game save manager.
Try to uninstall it from the directory?
Yes but you can run it as administrator from there
what exactly happens?
Ok all my games are gone then can't play any games because theres nothing I can do.
Anyone got some suggestions?
Why Windows works just fine nothing wrong with the old copy and paste.
Do you have the old installation on the old Hard disk to try?
If not, try uninstalling, completely blatting all the Steam/Valve registry entries, then re-installing.