Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
I tried that and it's a 32 bit and I need 64 bit, but when try finding option get bamboozled by all the drop down boxes
Which specific product do you have? For recent versions of Office, you should see the 64 bit by default, unless there is existing 32 bit Office software on your PC or if your PC is running 32 bit Windows of course.
Unfortunately, terminology isn't always transparent. 32 bit may be called "x86" while 64 bit is called "x64."