Once I login, any icon I click on pops up a "Restrictions" error window containing this message:
"This operation has been cancelled due to restrictions in effect on this computer. Please contact your system administrator."
I was adding a group policy to stop execution of certain applications and must have accidentally done something that blocks everything. I tried Safe Mode and there was no difference. I can access the control panel but none of the icons will execute. None of the administrative functions can be run (regedit, poledit.msc, etc). I tried loading a previous snapshot of the registry and it did not fix the problem.
How can I either edit the group policies and undo whatever I did or put them back into an "empty" state?