Two possibilities from me:
- Try right clicking the unwelcome icon and clicking Show Details. It should open the software store to the unwanted software's page, and you can click uninstall from there.
- If that doesn't work, this may be a case of an issue I left feedback on in my first post on these forums. Orphaned .desktop files are a pain. I recommend this as a last resort, because it would remove the icon, but if there's software left over, this method won't remove it; it'll just get the icon out of your face.
In a terminal:
- Type
sudo find / -name "*Windows*.desktop"
This will list all .desktop files on the computer that have "Windows" before the dot. The sudo isn't strictly necessary, but if you don't include it, you'll get a permission denied error for every folder your user account doesn't have access to. Your list will be shorter with sudo. - From that list, find any and all examples of Windows App Support, note their locations, and delete them. This should get rid of the unwanted icon.
If you're not confident in which to delete, you could paste the output here. It's also possible that this won't find it, depending on how things are done. My Steam install has an icon on my desktop and one in my application menu, but no desktop file I can find. I don't know how that works.
One way or another, I consider removal of unwanted icons to be a pain point I hope Zorin addresses in the future.