(the 20 minute delay is killer, but understandable)
i just gave you 2 upvotes. your posting delay will be removed completely after a certain amount of upvotes.
double clicking on a .txt file still opens MS Notepad.
maybe you can do it manually:
if you are on windows 10:
right click on any .txt file > open with > other apps > more apps > scroll down and click on other apps on your pc > browse to C:\Program Files (x86)\Notepad++ and select notepad++.exe
(this .txt file will now be opened in notepad++ once)
now notepad++ is registered as an app to choose in the open with dialog.
now you can close notepad++.
then right click on the same text file again > choose open with > other apps > select notepad++ and check “always use this app to open .txt files”
from now on all .txt files should open in notepad++ as the default app
note: the windows 10 open with menu dialogs have changed a bit through time, depending on your windows updates, so the texts or some in-between-steps, like “other apps” after open with, do not exist, but present you with the apps list right away.