I get the error message " Error 8417: N record found. I have Arcgis license already installed.
is that the exact error message or did you drop some 0s from the front, and does the 'N' mean 'No' or was there anything else. Maybe a screen grab would help
ArcGIS Pro (and its extensions') license codes are different from ArcGIS Desktop (ArcMap) license codes. ArcGIS Pro license types—ArcGIS Pro | ArcGIS Desktop
Please contact your local Esri Distributor to avail the valid licenses codes for the same.