The procedure entry point D3D12SerializeVersionedRootSignature cannot be found in the Dynamic Link library
that must be a missing or corrupted .dll? i suppose resetting did that.
did you try to check for windows updates, see if it downloads something?
or go download the full driver from https://www.amd.com/en/support/download/drivers.html for your gpu?
or try DDU first to uninstall the graphic drivers and then install again the graphic drivers, maybe the full version?
i think this should be easy to fix