Enable all disabled commands permanently

Question

I want to enable all disabled commands in Emacs such as `downcase-region` - that is, when invoked they do not ask confirmation from user. Unfortunately section "48.3.11 Disabling Commands" of Emacs manual says nothing on enabling all disabled commands permanently. Emacs version: 24.0.95.1

Accepted Answer

As written in EmacsWiki, you can add `(setq disabled-command-function nil)` to your init file, to enable all disabled commands:

Enable all disabled commands permanently

Solution

Problem