windows blue screen after restoration

[gotthe]

Hello,
Server Fog 1.2.0 OS ubuntu
PC Windows 7

I use FOG for saving all the computer configuration on a simulator.
I use FOG for 100 Pcs all are working with Windows7.
For some images (about 2%) I have windows blue screen during the Windows boot.
I tried with different disk always with the same problem.
I check the disk, there are ok.
I tried CHKDSK without sucess
I tried SFC /Scannow without success
I open the target disk using a bootable usb key.
all the windows file are here, the size are correct.

If I copy manually the files Windows\System32\config\system & SAM & Security from the hard drive source to the hard drive target (using the same computer). I have no more windows blue screen.
It seems that in some case these files doesn’t survive the operation disk=>image=>disk.
have you any idea?
Thanks

[Wayne Workman]

If you have a spare machine laying around, I’d ask you to try FOG 1.3.0 RC, and see how it goes. Leave your old fog server alone for this.