I would like to offer you yet another useful way to open the Settings charm in Windows 8.1. The 'official' ways to open the settings are as follows:
- Press Win + i keyboard shortcut.
- Move you mouse cursor to the bottom right corner of the screen, and click the 'Settings' gear icon.
Here is another tricky way: in Windows 8.1 you are able to create a shortcut to open the Settings charm with one click! For me, it is really a must-have shortcut which I have pinned on my taskbar.