I tried the links previous to the one I'm replying to.. They didn't
help. Thank you though.

Does your Hardware Manager (Control Panel, etc.) indicate a problem
(yellow  exclamation sign) or disabling (red coss)?:
No, it looks absolutely normal and says it's not malfunctioning at
all.. Windows doesn't recognize any problem with the drivers.. Yet
sound still isn't working.

Does the problem appear in (plain) audio and in MIDI?:
Yes.

A rude one: do the answers to earlier "no sound" questions inspire you
to try certain actions?:
No, I exhausted all of the previous ideas after searching the web for a
long period of time. Hence why I said I tried rolling back drivers,
uninstalling and reinstalling, I double-checked everything on the
RealTek audio screen to see whether anything was muted.. I checked the
regular volume of the PC separate from the Realtek. I don't post on
forums or groups unless I have exhausted every option that I could
think of or gather from online.

There are so many factors that could cause "no sound", you see, and
it's hard to tell them from a distance.:
I know that obviously. That's why I'm answering questions and giving
the information I know instead of just saying "plz help sound iz broken
lol".