SAPE.Heur.89AF1 received from MS

Downloaded Windows 10 media from Microsoft. Made a disk and left it in the drive. Norton is telling me that a file, Windows 7 Activation.exe, is infected with SAPE.Heur.89AF1. When I search for this I don't find anything.

This may the latest in a series of false alerts that I am getting with Norton's. Usually it's related low reputation files from small developers or updates to previously installed software. This is different. This threat name looks more ominous and it came from a OS install disk.