How do I fix this? This all happened after I put my RAM into slots 3 & 4 which the motherboard doesn't like the PATRIOT low latency RAM in which I found out. Firstly popped up with system32 config corrupted or missing. So I put the ram back into 1 & 2 and now my backup OS goes black after the Windows XP Home loading screen. Fortunatley it was my backup OS which was affected but still want to know how to repair it.