Autochk.exe program not found - skipping autochk

my windows 7 partition will not boot and I need to get this fixed quickly. whenever I try to boot it says autochk.exe program not found skipping autochk, then gives a bsod that is too quick to read and restarts. I do have a windows 8 partition and a windows 7 repair disc that I can work from. reinstalling is not an option.
 
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