whenever i sometimes turn my comp on, and am not on it, say i so happened to turn it on, but never went back to it - i sometimes come back to a blue screen, or a system disk, put in something and push enter...i tried catching what the error says but its hard as i couldnt really save or do anything, the blue screen i think says something about Kernel error, memory something/memory dump? (i dont even know the exact words) but sometimes my pc wont even boot up, itll shoot me to the last known configuration/safe mode screen after numerous tries -- and not want to boot up (last time this happened and i couldnt get it going i had to system restore)
the thing is, i know its nothing to bad as it never happens unless im not at the comp, i can be say have a file downloading and not be at the pc, or messangers runnin and it's fine, its only when i turn the pc on, and is idle without ever touching anything it happens (i have no clue as to what it is or what causes it)
any ideas?? or actions i can take to prevent this