You might need to do a recovery install, hopefully you still have the HP recovery disks. If you have files that you want to save, you can boot with the BART CDto find and copy files.
HP recovery Different model - same process
This is probably your best option right here, mike.
If you go with the standard recovery process (not the destructive one) it should repair Windows and remove all but the programs the PC originally shipped with, and it should leave the data you have saved in your My Documents folder.
i have another question. how do i make the bootable cd. ive been having problems making one
To make a custom one you need to have a CD burning program like Nero that will create bootable CDs, and then you have to have a proper boot sector image file to actually make the project bootable.
I would recommend just getting a pre-made one like the Ultimate Boot CD. http://www.ultimatebootcd.com