Hello Muhammad - It just dawned on me that you may not know the external
editor 'fix' for windows.
My previous email gave directions for how top find the "config.conf"
file. Once you find this you can edit the line that says: "editor = " to
something like this,
editor = C:\Users\steve\AppData\Local\Programs\Microsoft VS Code\code.exe
The path above is for my Win10 system and my VS Code location - you juts
need to specify your VS Code install path.
Reference documentation,
https://wiki.gnuradio.org/index.php/Embedded_Python_Block#To_specify_a_default_editor_in_Windows