I have a Dell laptop that boots to a black screen with only a mouse pointer.
OS - Windows 7 HP 64b
This is what I have done so far;
I have run both the onboard and PCDoctor diagnostics (purchased the professional version) All hardware has passed.
I tried to do a system restore, but it failed because it was unable to extract a file from the restore point (malware file), so I removed the hard drive and mounted it in my Linux machine, and manually copied the 5 hives from RegBack to system32/config and put the ones that were origionaly there into a backup folder.
This allowed me to boot to the desktop, where I ran MalwareBytes and found 4 traces. After removing these, it is again booting only to a black screen with a mouse pointer.
Safemode produces the same results.
I cannot access Taskmanager by any means, right click does not appear to work.
I am able to mount the registry offline and the HKLM/Software/Microsoft/WindowsNT/Winlogon apears to be all correct; Shell is Explorer.exe
Explorer.exe is located on the HDD in the proper places.
I am very comfortable working in the registry, and with Windows in general, however I am stumped on this one.
Another set of eyes on this would be appreciated.