Hi..Can't figure this out! My friend's computer crashed after running a virtual community. I've tried loading windows both by way of repair and clean install. Every time stop code 000000050 creeps up and when we try a fresh installation, it says there are no partitions listed to format. It says unknown disk 4 times down the partition list. I looked up stop code and it said possible memory error, so I ran bootable memtest. Both Rams seem to pass. Any help would be greatly appreciated!!