Fix : Unable to open with Sublime Text 3

In registry editor, delete the key and all its subkeys:
HKEY_CLASSES_ROOT\Applications\sublime_text.exe

Now you would be able to select the sublime from open with.


Problem:
----------
Workaround if you have ST2 and ST3
when I double click a txt file, I would like it opens automatically with ST3, like it used to do with ST2.
Unfortunately, when I try to change "open with" for txt files, ST3 is not on the list and if I manually select the exe file nothing happens.