Close the current program :-
Typing ALT + F4 will close the program that is running. This is useful as it saves you time mousing over the “X” and clicking.
Minimize all windows :-
Simply pressing Windows + D will minimize everything you have up, which will save you some time pressing the minimize button for each window.
Close the current window/tab :-
Stick of moving all the way to that X button? Press CTRL + W and the current window will close.
Bring up the system information window :-
Press Windows + Pause/Break and the System Information panel will be ready to go. This might be the only use for the Pause/Break key you will ever find, so enjoy it!
Open the task manager directly :-
If you want to bypass the interrupt that happens when pressing CTRL + ALT + DEL and jump right to the task manager, typing CTRL + Shift + ESC launches it directly.
Better multiple monitor control :-
There are several useful keyboard shortcuts for controlling open windows on multiple monitors. By pressing the Windows Key + Arrow Keys will cause a window to quickly snap to each side of either monitor. Alternatively, hitting Shift + Windows Key + Arrows will cause the window to jump to the other monitor. Lastly, By pressing Windows + P will allow you to quickly set up a second display or projector.
Fix little mistakes :-
Did you know you can undo almost any action? CTRL + Z is the ultimate hot key, and for sure you know about it already, however note that undo doesn’t just apply to typing. If you accidentally delete or move a file, you can hit CTRL + Z to bring it right back to where it was. In Chrome and Firefox you can also undo closing a tab using CTRL + SHIFT + T.