Win 7, Win 2008 Enterprise Server Black Screen on login
Posted on 2011-10-17
I am having an issue with a Win 7 physical machine and 3 Win 2008 Enterprise server virtual machines. Ill start from the beginning...
I am securing my test environment for deployment. I have 4 win 2008 enterprise servers running in VM fusion, and 2 win 7 pro physical machines. This seems to be a GPO issue as this is the only thing I am tweaking that can reach all of these machines and because the only machine not affected is my Domain controller (because it has its own GPO). I have read posts where Admins have scripts for XP that are effecting win 7 machines but this is not the case here. These machines are the only thing on the Domain. I have an extensive GPO Defined, I am thinking that maybe it was the Computer/Policies/Windows/Security/Local/User rights/Profile system performance value that was causing my issue, originally this was set to only include admins and the diagnostic host profile (WdiServiceHost), I removed admins due to the customer requirements,
I began getting errors in the event log so I added system Local system and sevice accounts just to see if they went away, Then one at a time (After my GPO refresh intervals) the machines started dropping like flies (both Physical and virtual alike). When they boot up they get past the bios screen, then the black screen after the boot animation but before the OS splash screen and Ctrl+Alt+Del screen is displayed, the cursor is loaded, and I am able to control it, but that is is. I let them sit all weekend to see if they would recover but to no success. I disabled the GPO and restored the snapshot of the VMs and let them run all weekend and it did not happen again so I am confident it was the GPO,
My question is how do I recover my physical machine? I could do a system restore but I would like to find a way to fix this with out losing data. So i think I am trying to remove the cached GPO so it will redownload on next boot. I read that you can delete the network user profiles from the machines and this is where the cached GPO is stored, unfortunately I cannot get into the system at all, safe mode just gives me a bigger cursor but still a black screen, I can get into the command prompt in the system recovery portion of the win 7 pro CD, but when I try to del the profiles it seems to complete but nothing is deleted. I tried the win resource tool DELPROF.EXE but since the system is not completely booted it is not responding to any network requests. Anyone have any suggestions on how to remove the cached GPO so I can boot this system without system restore?