The gpsvc does not start. All options to start the service are grayed out in the Service manager. A command line attempt to start the service fails with "Access Denied", which I am starting to believe is the expected result.
Obviously, with this issue only administrators can log in.
I have tried reverting to a restore point from yesterday, however that did not resolve the issue. I could try to find an earlier restore point but I do not know if one exists.
OS is Windows 7 running within a SBS 2011 domain.