My son is running Gdevelop on his Windows 10 laptop. Been running fine until a few weeks ago stopped launching. Uninstalled and tried to reinstall but the installer just gets stuck like in the picture.
Tried beta 88, 91, 92 and Windows Compatibility mode and run as Administrator. No luck.
Also, you should try to delete all old files from previous installation in C:\Users*YourUserName\AppData\Roaming\GDevelop 5*
Sometime files here can be locked for weird reasons by Windows, avoiding the installation/update to work.
Last thing, after deleting files from user folder, you can try a windows registry cleanup with softwares like ccleaner or similar, then try to install again.