TheTopHatLord :
I have a 1TB hard drive on a computer that has Windows 10 and a couple of programs. I have another computer that has everything but a hard drive. It's my main desktop so I want to transfer the hard drive. If I put the hard drive in my main desktop, will the copy of Windows and the programs stay as they are?
It probably will not boot up. A drive with an existing OS, put into a whole different system, often results in 'not working'.
In the unlikely event it does boot up, you may run into licensing issues.
Where did the Windows 10 come from? An Upgrade from a previous OS (7 or 8.1), or something you bought and installed?