• Press SHIFT five times: Toggles StickyKeys on and off
• Press down and hold the right SHIFT key for eight seconds: Toggles FilterKeys on and off
• Press down and hold the NUM LOCK key for five seconds: Toggles ToggleKeys on and off
• Left ALT+left SHIFT+NUM LOCK: Toggles MouseKeys on and off
• Left ALT+left SHIFT+PRINT SCREEN: Toggles high contrast on and off
The WinKey on your keyboard is the most useful key, here is the bunch of tricks you can do with it.
If you are confused what’s WINKEY, see image below.

Shortcut:
WinKey : Opens Start Menu ( You can also open Start Menu by hitting CTRL+ESC )
WinKey+R : Opens RUN Box
WinKey+F1 : Help and Support
WinKey+M : Minimize all Windows
WinKey+D : Show Desktop
Winkey+Pause/Break : View System Information
Winkey+U : Accessibility tools
Winkey+L : log off Windows.
Here are few commands for direct access to Control Panel pages and tools.
How to Use
First or all bring up the RUN window by pressing WIN KEY + R, on your keyboard.
Type any command from the list below ( Without Quotes “”).
Hit ENTER.
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Ever wanted to access the administrator account from the welcome window without having to boot to safe mode. When at the screen press CTRL-ALT-DEL twice. This will bring up the login screen were you can type a user name and password in.