Hi I'm new to this, and i really need help with my computer because Im not really good with technology! I have a Windows Xp Compaq comupter, and when I turn it on sometimes I get this message on the screen "Windows could not start because the following file is missing or corrupt: <windows root>/system32/ntoskrnl.exe. I turn off my computer once or twice before it finnaly starts with out this message popping up. I would really like to know how to fix this problem so if anybody could help me that would be great! Thanks!