Pagefile.sys not found....Please Help

I took the c: drive out of my wife's computer....put it on the secondary ide bus as master....and when I started my ystem it said it wanted to restard because it had finished installing new hardware.....now when I remove the drive and restart..it says my pagefile is gone or too small and it won't login
ike I said...if I yank her drive back out..it'll boot but can't complete the login process it returns an error saying it can't find the page file or it's to small...if I put her drive back in assecondart master it boots...and then I go into the setings and it says the pagefile is on the c: drive

Please Help
Don