(it seems that you performed a user-profile-wide install, not system-wide install, so I’m not sure if my experience with system-wide install can be applied here)
To remove a system-wide installed meld - a standard windows “Programs and Features” can be used.
- Meld’s application folder (similar to the ine you mentioned)
- Meld shortcut from start menu
- Meld entry in “Programs and feautures” and some installer settings
The main difference to manual deletion of Meld’s folder - if an item is kept in “Programs and feautures” on the next install of Meld - it may reuse previous installation path without ability to change it (not sure here).
gsettings-based configuration stored in the windows registry in
is NOT cleared by uninstall as far as I remember