[Solved] Can't Launch or Install

GDevelop general Bugs reports
4

Uninstall Gdevelop properly before a new install.
C:\Users\YOURUSERNAME\AppData\Local\Programs\gdevelop ← uninstall.exe is inside this folder.

And remove manually this folder (make a copy before if you need backup):

C:\Users\YOURUSERNAME\AppData\Roaming\GDevelop 5 ← all preferences and caches files.