Originally Posted by eddyxwb
I don't have a new hard drive so I used an older IDE hard drive from my previous P4 computer that the motherboard went dead last week.
This is the problem. As Rican already said you will have to either re-install Windows or repair it.
Since you had a old setup the hardware profile doesnt match and therefor Windows can not boot for this reason.
A repair should work just as well as a reinstall. But yeah you cant plug in a HDD with a install onto a new machine like that and have it work.