I don't know what you downloaded, but inside my Archive ...
https://i.imgur.com/Rmcwvph.jpg
UnLock MapSource.exe must be run from inside the folder C:\ProgramData\Garmin\Maps\City_Navigator_Europe_NTU_2023_10.gmap
I've done this operation, as many others Users, a thousand times without any problem.
I suggest you to revise what you are doing, starting fron disabling any Antivirus
:lol: