For Another one to watch for is your Audio Temp Directory. This is where RB/PT will often default to a UserName/AppData/Temp directory
Example:
C:\Users\Bob\AppData\Local\Temp\

Guess who has permissions to alter this folder?
Someone signed in to the computer as Bob, or an Administrator.

You can easily tell Windows to run RB/PT as an Administrator all the time, as jford mentioned.
Not so easy to tell it to run as Bob. <grin>
So you can eliminate any permissions issues by running as Administrator. Not 'needed' by everyone, but it eliminates a fair amount of possible weird issues in one easy step.
While these programs do not write to Windows much (etc) during the install, sometimes we forget how much they do rely on the Windows foundation to run (especially at default settings).


It's just an easier, less futzing around 'good habit'. Set it once and forget it.

I do not work here, but the benefits are still awesome
Make your sound your own!