I agree with Gisabun on MSE!!!!...
I just got done working on a client's machine that was using MSE, and it was so hosed that you could not use conventional means to recover the system!! Even the optical drives were being blocked - and I suspect the malware flashed the controller on the DVD drive and ruined it. I had to pull every trick I knew out of the tool box to fix this machine, and I had to learn a few new tricks too!!!
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