I mistakenly denied all rights to open my disk drives, including administrator. Now I cannot access any of my disk drives.
Is there a workaround for this? Windows 7 won't let me create a new user or account. Everything is locked up.
Warning: Disable the Administrator Account and Enable UAC when finish for security reasons.
If you've changed all the permissions on all folders under C:
you've probably hosed your Windows 7 installation. There are too many distinct ACLs for it to be worth putting them back in place.
As far as fixing this goes, you should be able to change ownership of a folder to your account and then once you take ownership you can change the security settings again.