HI, i been having a problem with my pc, for some reason almost every time i shut down my system for the night then when i turn it on the next day it crashes. when, I try to start it up the next day windows 7 aways wants me to start the system from a restore point it says there was a problem during start up, However this never happens when i just restart my computer on when i do a shut down. Anyone know what this problem is or how i can fix it?