The computer in question is my girlfriend's Asus netbook. It is barely 3 months old. Windows XP home edition x86 Intel Atom 1.66GHz 1GB DDR2 800MHz We began noticing problems a few days ago, with applications, itunes especially, scrolling and loading very slowly. I figured i'd upgrade to a 2GB RAM chip and it would help. But before I had a chance to do so, a stop error occured (0x0000007), which said the memory was faulty. At this point I suspected hardware damage. Since this netbook has no optical drive, I couldn't boot from a CD and run memtest86+. I did however run a memory test application (I think it's called memtest) which reported back error free. I also updated the video chipset drivers and uninstalled recent software. The computer ran fine for another 24 hours or so, but just now I got a new stop error: Driver_irql_not less or equal 0x000000D1, 0x000000002, 0x0000001, 0xB328F711 And then as I was finding the dump, another 0x0000008E. I restarted again to a blackscreen saying "Windows could not start because the following file is missing or corrupt: windows system32 config system" right after POST. Attempting to booting in safe mode gives the same error. I can't use the XP disc to repair because it's OEM and didn't come with a disc. And there's no disc drive anyway... Ideas?