Minimize all loaded programs and windows
Windows Button + M

Show Desktop
Windows Button + D

Search Files and Folders in Windows
Windows Button + F

Load Windows Explorer
Windows Button + E

Load Run Command Window
Windows Button + R

Open Start menu
Windows Button or Ctrl + Escape

Load Utility manager
Windows Button + U


Lock Windows
Windows Button + L

Show Windows Task Manager
Ctrl + Shift + Escape

Load Windows Help
F1

Close any active program or window
Alt + F4

Close any sub window
Ctrl + F4

Minimize any active program or window
Alt + Space + N

Maximize any active program or window
Alt + Space + X

Restore any active program or window
Alt + Space + R

Move any active program or window (active window must not in maximized position)
Alt + Space + M

Re size any active program or window (active window must not in maximized position)
Alt + Space + S

Capture full current screen (You can paste it in Paint Brush or any other program like Photoshop or Microsot Word etc.)
Print Screen

Capture only active window (You can paste it in Paint Brush or any other program like Photoshop or Microsot Word etc.)
Alt + Print Screen

Switching between loaded softwares
Alt + Tab

Delete selected files and send to "Recycle bin" (It can be restore from "Recycle bin" later)
Delete

Delete selected files and do not send to "Recycle bin" (It can't be restore from "Recycle bin" later)
Shift + Delete

Copy selected files
Ctrl + C

Cut selected files
Ctrl + X

Paste copied or cut files
Ctrl + V

Get properties of selected file
Alt + Enter

Open or load selected file
Enter

Right click
Shift + F10