R.G. wrote:
You may have to adjust the boot sequence in the BIOS to tell it to go to your hard drive first. You may be able to leave the new PC's original hard drive in place, but it would probably be a good idea to re-format it once your own hard drive is in place and working.
To get in to the BIOS setup, switch the PC on and keep pressing Del until the BIOS screen appears.
I have no problem with this. The problem is that Win10 was activated with a different computer and it may not activate. I am sure it will boot up and run Windows 10 but it may asked for a new license as the old license is registered to a specific PC. Even the 2 computers are of exact made and model it knows the 2 computers are not the same one.