MICROSOFT® WINDOWS® SHORTCUT KEYS

Alt + Tab Switch between open applications
Alt +
Shift + Tab
Switch backwards between open applications
Alt + Print Screen
Create screen shot for current program
Ctrl + Alt + Del Reboot/Windows® task manager
Ctrl + Esc Bring up start menu
Alt + Esc Switch between applications on taskbar
F2 Rename selected icon
F3 Start find from desktop
F4 Open the drive selection when browsing
F5 Refresh contents
Alt + F4 Close current open program
Ctrl + F4 Close window in program
Ctrl + PlusKey
Automatically adjust widths of all columns in Windows Explorer
Alt + Enter Open properties window of selected icon or program
Shift + F10 Simulate right-click on selected item
Shift + Del Delete programs/files permanently 
Holding Shift During Bootup
Boot safe mode or bypass system files
Holding Shift
During Bootup
When putting in an audio CD, will prevent
CD Player from playing