Help...NTLDR missing on xp!!!!!

[ksb]

sorry to bring back such a dead thread but it was one of the top results on google and I really need help with this issue.

I think last night a virus got into my computer so when I started it today I got NTLDR is Missing. It wont go any farther into the system. I went into the bios and switched my hd to a smaller drive thats just in there (not even used). I figured I could just retrieve my files that way but it says access denied when I try to view my files. Im using windows xp, and im a complete noob about computer functions. I have 30 gigs of unreplaceable data that I need to get back; any help would be greatly appreciated.

~Ksb