Windows 7, which is no longer supported, is suddenly not allowing some users to shut down or reboot their computers. When they try, they get an error message: “You don’t have permission to shut-down this computer.”

A temporary work-around:

• Create another admin account and log into it.
• Log into the default admin account again.
• Shut down or restart as you normally would.

No indications when/if Microsoft will fix this new Win 7 issue...