Please try using a backslash instead of a forward slash when specifying the application path: %LocalAppData%\Programs. If that still does not work, feel free to post the client log file as it should contain information about the initialization of third-party applications.

no the problem is when i type Thonny just like in the image it works when it is installed in C:\Program Files (x86)\Thonny. But when i install it not on computer level but on user level in %localappdata%\Programs\Thonny SEB cannot find it and I need to manually specify the location. Because the username of all the users are different I cannot set a static path.

Please do provide the log file, all details required to help you further should be registered there. To my recollection, using environment variables for the application path should work.