Posted 13 September 2012 - 07:49 PM
It started with the unability for the OS to load properly from the disk; it would hang halfway through; the disk was then chkdsk'd which resulted in several errors was found and subsequently fixed.
Upon next boot, the OS seemed to load properly, but not long after a system crash was apparent:
"%systemroot%/config/SECURITY is missing or corrupt."
The SECURITY hive then was replaced (via the recovery console) with its counterpart in %windir%/repair which immediately resulted in lsass.exe throwing errors upon startup; the replace process then was repeated for the remaining hives until lsass was satisfied (reported no errors). Then for a moment one could think all was good (no moaning system services, no BSODs), but it was not (as the title also reveals):
You aren't able to come past the login screen; as soon as you enter, a white screen appears and the next second you're back on the login screen again. This behavour is true for all accounts currently on the system (including the hidden system one). Currently all registry hives have been replaced except for SOFTWARE.
Any help or pointers are truly appreciated!