When I say, "move," I mean copy program files from D: to C:, then possibly delete the D: drive original copy.

No, when I try to access programs located in D: from the file explorer, they simply...

Thank you to both of you for replying.

Ztruker, I did as you said, and went to the Properties of This PC and it said that Windows is activated, though I'm still not clear on what that means.
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All of my downloaded programs are located in the D: Drive

Sorry, didn't exactly know where to post this.

So recently I had my Windows Vista upgraded to Windows 10 (also upgraded various hardware).
Today I was fiddling around and customizing it, when I...