as an update I did an online chat with a tech from Dell.  I was informed how to take care of this problem.  No need to respond.  Thanks anyway
I have the above machine that needs a full reformat, very bad hijacker on it.  My virus software didn't catch it and the damage is done.  I'm on a different machine so no infecting here!! The machine  came with XP (vista roll back option) installed. The tag on the box for the product key is for Vista.  I want to put XP back on this box but when I put in the vista product key it tells me its wrong.  How do I get XP back on this machine without a proper key?  I have the Vista and XP cd's that came with the machine. Please help.  Thanks! Kat
Vostro 410 Reformat