i have an old hardrive from my HP computer and im planning to move it to a new CPU and MOBO would i have to reinstall everything or would my old hardrive recognize the new CPU and mobo and what about my games and other programs install would they still be there sheld some light please
You will need to format and reinstall windows. HP tailors their OS's to their specific hardware. You could try to repair the current install, but a clean format is best to get rid of that HP version (garbage) of an OS.
1. Change the boot order in the bios to boot off the optical drive first.
2. insert the OS disc into the drive
3. restart pc
4. you should then see a message to 'hit any key to continue'.
5. windows will start the format and install process