A weird bug of unknown origins has been hitting Windows 7 computers this week, according to multiple reports online. Windows 7 users have been reporting that they are receiving a popup message that reads "You don't have permission to shut down this computer" every time they attempt to shut down or reboot their systems. The cause of the bug remains unknown at the time of writing. For the past two days, users have been scratching their heads for solutions around the problem. The good news is that they've found at least least one temporary workaround and one unofficial fix to resolve the issue. Read more here. (ZDNet) The source of the bug is hinted to be coming from an Adobe Service running in the background.