that blue screen means kernel32.dll (an important file for Windows) is corrupt, or something is making it not run properly
what OS are you running? 98, 2000, XP?
there are a number of causes, even if it's not the file itself.
first, you can overwrite the kernel32.dll in the recovery console - boot to the 2000/XP CD, press 'r' at the first screen and at the command prompt, type:
copy "D:\i386\kernel32.dl_" "C:\windows\system32\kernel32.dll"
or you can do a repair-install of XP - boot from the 2000/XP CD, press enter at the first screen, f8, then after it says "searching for previous versions of Microsoft Windows" press r
this will overwrite any corrupt files
or it could even be a problem with something else, like bad sectors on the hard drive, or even a fluctuating PSU