3 Cool Shortcuts You May Not Have Known About – Handy PC Shortcuts
Alt+Tab – Allows you to quickly cycle between all open programs. Useful if you need to switch back and forth between programs, or if you just need to hide an open window very quickly. Ctrl-Esc also minimizes the open window, however most people know that.
Windows Logo+L Key – Locks your computer.
Shift+Delete – Deletes the highlighted file without first placing it in the recycle bin.