I'd just save the NVDA Appdata folder for your user account and copy it over what a fresh install of NVDA puts there.

C:\Users\{your identifier}\Appdata\Roaming\nvda

That's the folder that contains all of your customizations to NVDA whether it be settings, add-ons, etc.
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Brian - Windows 10 Pro, 64-Bit, Version 20H2, Build 19042  

Any idiot can face a crisis. It's the day-to-day living that wears you out.

      ~ Anton Chekhov