I’m going to be formatting and reinstalling Windows 10 Pro with a new product key (I lost my old key).
I still have the VorpX installer backed up from when I originally bought VorpX in March 2016. What do I need to know in order to reinstall it once I format my PC? I assume I will need to activate it again like when I originally bought it correct?
You will almost certainly need a new key, but apart from that there is nothing to care about. If the installer gets lost in the process, you can get a new one here:
BTW: if you have highly customized vorpX settings for one or more games, it might make sense to save them to a file in the vorpX config app to be able to reimport them on the other machine. You can easily drag and drop entries in the local profile list to/from the desktop.