Unable to set the default launcher in open with

Question

I am already in this problem
Now
When I right click the program on the desktop(lets say Quick Screen Recorder) and Open with > choose default program..> select the launcher program.
I am unable to set the checkbox Always select.... because it is inactive!. as you can See in this image :
Finding each launcher file(.exe) to launch is Painful! which i have to do because of this problem.
How to resolve "Unable to set the default launcher in open with" problem atleast.

Answer 1

Windows will not let you change the default open-with program on several types of files, including those with no extension and LNK(shortcut) types. This "file" you are trying to open appears to be one or the other. You could, in theory, get into the registry to change the association for LNK files, but good luck using any shortcuts after that. FWIW, LNK file extensions are "super-hidden" but you can see the extension if you go to a command prompt:

Winkey+R or Start > Run cmd.exe (should open command window)

CD %userprofile%\desktop
DIR *.*

Your other question contains a comment that explains how to examine the association with .LNK files; you will need to follow -those- instructions, or edit the registry, to fix your shortcut issue.

Please note that shortcuts aren't actually the installed programs; they are pointers to the actual program you want to run. As such, you can run anything on your system directly, without needing the shortcuts, but they are convenient.

Answer 2

Easily. Right click on file -> Properties -> press Change button -> choose the program -> press OK.