How can i remap a keyboard key?
Is there a tool to modify Windows default keyboard shortcuts?
For instance, Ctrl + Esc opens the Start menu. I'd like to change it to Ctrl + M and stuff like that.
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AutoHotkey or Autoit or one of the other hotkey programs will allow you to do that.
I'm not sure that you modify windows to allow you to do this. I know you can specify shortcuts for programs shortcuts on your desktop, but I believe that is the extent of it.