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#71
Does it offer Startup Repair? Accept it.
If it's Safe Mode then will it enter Safe Mode?
If you reboot and tap the F8 key vigorously, will it offer Repair My Computer? Try several times.
If repair is offered, accept and reboot. If not or it still won't start, reboot into Repair to open a Command Line to confirm Partition Marked Active is System REserved (preferred) or C, then run Startup Repair - Run 3 Separate Times.
Remember that it may not repair or start if not fully cleaned up so you'll want to complete the clean up with Cottonball as soon as he gets online.