Okay, I have this computer from some leftovers that has 4GB of RAM. The Windows 7 on it was 32-bit so the upgrade to Windows 10 had to be to a 32-bit too since the 64-bit upgrade can't run on it, and as far as I know, and please correct me if I'm wrong, the 32-bit key does not work for the 64-bit so I can't reinstall a 64-bit Windows 7 to upgrade to a 64-bit Windows 10.
The system sees only 2.99GB because of that (the video card is a ~1.5GB GTX 480). I heard that 64-bit OS's use and require more RAM to run. Will I benefit of upgrading to 64-bit with this same amount of RAM (4GB)? Will the ~1GB extra RAM I gain from it have an amount of it available that is worth it to utilize? Is that amount worth the new purchase of a 64-bit Windows?
There are no plans to upgrade the RAM as that computer is just a stand-by made from leftovers.
At best, I won't be playing demanding video games on it.
Thank you for your opinion