This often occurs on 64-bit Windows due to registry virtualization. Ensure the tool is pointing to the correct registry path, typically located at HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Garmin\Mapsource on 64-bit systems.
For those looking to maintain their Garmin ecosystem, keeping a copy of the MapSetToolKit v1.77 zip is essential for fixing "MapSource could not find any installed maps" errors and managing custom open-source maps like those found on OpenMTBMap . Index of /GPS/Mapset_Toolkit mapsettoolkitv177zip download fixed
Safely remove maps and their associated registry keys to clean up the software environment. Key Features of Version 1.77 This often occurs on 64-bit Windows due to
Identify and fix broken registry entries that cause MapSource to crash upon startup. mapsettoolkitv177zip download fixed