After updating Garmin Express to version 7.20.0.0 I Installed City Navigator Europe 2025.10 onto my Zumo XT.
However, trying to install the map to my PC failed every time (looking at the progress bar it seemed like download succeeded, but installation failed). Tried on another PC using same version (7.20.0.0) but got exactly the same problem.
Removing Garmin Express and reinstalling did not help.
I managed to revert to the previous version of Garmin Express (7.19.0.0) et voila, problem solved. Did the same on the other PC with the same result.
Contacted Garmin Product support about this and their aswer was that "they were happy with my feedback" ....
On a side note: would be interesting to know where older versions can be downloaded (had to restore a system backup to revert to older versions)