Thanks for the replys,

but unfortunately the repair isn't working. I guess the recovery console didn't detect that windows was installed, and would automatically prompt me to delete the partition instead, and it didn't give me the option to repair installation.
Maybe its also worth mentioning that my XP version is OEM. And my initial problem was that the disk drive wasn't detected, and after I tried to "FIXBOOT" commands in recovery console, this second problem came with the hall.dll.
I just reformatted my computer instead, and now its working fine, just lost some school project documents, but it doesn't matter since I am already done with them.
My question now is what could have caused this initial problem?
Funny thing is, I don't have a clue because it happened when my brother was on my computer, and I am guessing it was a virus from him going to a sketchy site?
Thanks