PC resolution issue. (forced 720p - any way to factory reset?)

I play through a 720p plasma that also has 1080i - it’s old, but still decent for most purposes. Only issue is that some games detect it and won’t allow for a 1080 picture even though it can display that. The OS runs at 1080.

When I started SFV it was running at 1080, but after playing with the options it’s locked into 720. Does anyone know if it’s possible to reinstall the initial values? Deleted a few .ini files and redownloaded them, but that didn’t fix it.