OK - I think I've got it this time...
I've uploaded a file thkaa.zip to my SkyDrive at Noel's SkyDrive
please download and save it.
Extract the contained COMPONENTS file to you desktop.
Now open Windows Explorer and navigate to the C:\Windows\System32\config folder
right-click on the COMPONENTS file there, and select Rename - rename it to COMPONENTS.OLD
now copy the COMPONENTS file you extracted into that folder (make sure that it appears there!)
Close Windows Explorer, and reboot
now run another SFC /SCANNOW and post the new CBS.log file