So I was trying to make some changes on our server that runs the Terminal Services role for our environment. One of the suggestions required changing the registry permissions on a certain key. Now I was hesitant but decided to go ahead since I made a backup before hand of the registry.
I backed up the root key HKEY_CLASSES_ROOT and changed the permissions not realizing that adding a user to the objects acl would overwrite all other intries. Low and behold I added the user I needed but over wrote everything else. I noticed problems right away so i went ahead and tried to import the old registry, it failed. So now its 4 hours later and I am trying to figure out how change the permissions of the registry key back to what they were. I have tried regini HKEY_CLASSES_ROOT [n] but I keep getting an error "Failed to load file".
What do I do? The computer is far from functional but it is critical and I need to get it up and running as fast as I can. However I am also unable to install anything. Please let me know if anyone has any suggestions.