You tried slaving it and scanning the affected drive with combofix?
I have had this on numerous m8s PCs/ laptops, never been unable to boot it in safe mode.
You can always try a DOS boot disc with combofix in a separate folder.
Once booted into DOS switch to combofix folder and run combofix.exe.
Or download the rescue disc on another PC as shown in the link and boot via the disc rather than the HD and follow the rest of the instructions.
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