This article may be useful for individuals that have a problem applying licenses in AMS 5
This is the typical error you will see when trying to save the PC fingerprint file needed to apply the license.
This seems to occur more on Server operating systems on domains but may happen on workstations as well.
The most common cause of this issue could be 8.3 Filenames format NOT being enabled.
The solution to this varies depending on the environment of the PC.
If unable to reformat the drive and reinstall O.S, perform the following steps:
Also see: https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/fsutil-8dot3name