https://superuser.com/a/1443271/1770221 - This answer accurately represents my situation; running Adobe Acrobat on Win 10 on an x64 computer.
Just for context, this is what happens in my scenario: VD1 has Adobe acrobat opened with a PDF file. I go to VD4 and now I want to open another PDF file that is a different topic. BUT, when I open the app OR the file, it just takes me BACK to VD1!
Regarding the link above containing the solution to my problem:
What I am afraid of is that, I'm not familiar with programming, so I'm wary of following these instructions as; what if something goes wrong OR if I encounter any bugs or glitches after following these commands? Therefore; is there a way on reversing this action, so that everything is back to normal (w/o factoring resetting ofc).
Another question to ask: is this solution also applicable to use for another PDF reader that doesn't support multiple instances? Why type acrobat and not the full name adobe acrobat when running the command?