need help finding this part of the register so I can reverse this
The registry is huge. We can't "guess" what you changed.
Step 1: when "tweaking" the registry MAKE A BACKUP before you touch any entry.
Step 2: write down exactly what keys in what section you changed.
Step 3: if it doesn't work, use the reg backup you created to reverse the change.
As the other said, you'll need to go into your browsing history and try and figure out where you got the advice and what you changed to undo it.