@gchen Thank you!
@TheBestPessimist I built my HTPC (home theater PC) 12 years ago. Back then, most things were 32 bit; x64 was just starting to become a thing. There weren’t x64 drivers for some of my specialized A/V hardware, as I recall. My HTPC has an x64 CPU, so I could upgrade my it to x64 Win 10. But that would involve a clean OS install and reinstalling all my software, including photo viewing and editing, video and audio viewing and editing, sound card, video card, serial port emulation, in addition the the more “normal” software items like web browsers, Adobe reader, etc. Installing and configuring all that software would require many, many hours of work, with no sure guarantee of eventual success.
So, the reason I’m using 32 bit OS on this particular PC is because it’s already there. All my other, newer, PCs are x64 of course.