I use Windows 10. I use the hotkey Windows-Space to switch keyboard layouts (between QWERTY and Colemak). This is a built-in feature of Windows 10.
The Windows-Space hotkey is inconvenient because I often hit it by accident. How can I change the shortcut to left-altright-alt?
Under Control Panel\Clock, Language, and Region\Language\Advanced settings, in the section 'Switching Input Methods', chose 'Change Language bar Hotkeys'. You will get a little pop-out window which allows you to set combinations to directly get each target keyboard, as well as the general switching key sequence. For example, I use Left ALT + Shift + 0 for US, Left ALT + Shift + 1 for German, etc.
