OK, i left my computer on one night and when i woke up the next morning there was a blue screen saying something along the lines of "operating system cannot be found". i restarted my computer but got myself yet another blue screen this time saying: A problem has been detect and windows has been shut down to prevent damage to your computer. UNMOUNTABLE_BOOT_VOLUME if this is the first time you have seen this message restart your computer...... technical information: *** STOP: 0x000000ED (0x82F300E0.0xC0000006.0x00000000.0x0000000) i can't get past this screen at all. I've tried starting it up in safe mode but that doesn't work. i did a bit of googling, but I'm not the most knowledgeable guy when it comes to computers and i don't want to screw anything up (supposing the my computer isn't bricked already). So could someone please tell me how to fix this? or at least tell me if it's fixable at all. oh, and I'm running windows XP home edition on an LG laptop.