if its a htpc. best to just install os again as you wont really much time if data is on differnet partition/drive
actually you can do it without reinstalling
but its a pain.
uninstall all drivers specific to your device, had to do something but i forget which to show them in device manager
that put it back to generic drivers
then after swapping out parts from core 2 duo to core i5
i had to use a program (easy bcd) so that i could reset boot options to use all 4 cores and all my memory
then i had to restart and install all the drivers for hardware
had no problems at all.
no error's or anything
i wouldnt recomend it to most people.
backup as if you were going to reinstall. at the end of the day doing this adds about...