After upgrading my Windows 7 Ultimate x64 system memory from 4GB to 8GB I ran into a BSOD (MEMORY_MANAGEMENT). Booting Windows repair disk reported a corrupt registry.
I fixed the memory problem, ran thorough memtests, so I trust the 8GB is OK now. The computer and Windows installation have always been reliable before the crash.
I can still boot the system normally, but there is some strange behavior:
System properties: CPU and RAM info is "not available"
The start menu populates very slowly after boot.
Shutdown button in start menu works, but there is no shutdown submenu anymore.
WMI cannot connect to local computer; WMIdiag reports error 0x80041001 (WBEM_E_FAILED) for WMI_MONIKER CONNECTION and WMI CONNECTION.
To my surprise there are no system restore points with a timestamp before the crash (only a restore point created afterwards by a Windows critical update).
I did a safe boot and ran SFC /scannow successfully but it did not solve the problem.
I ran a malware scan and a rootkit scan, no threats found.
I made a file backup of the system disk (Acronis TrueImage) right before the memory upgrade, so I think I should restore the registry and the WMI repository to the point before the failure. Can I do this by restoring c:\Windows\System32\Config
\* and c:\Windows\System32\Wbem\R
* ? I think Acronis is smart enough to delay the copying of these files to the original location until the next reboot.
I want to avoid reinstalling Windows and all programs.