Short Cuts of Windows 8/8.1 one Must Know

50 Windows 8 /8.1 Keyboard Shortcuts You Must Know.

Windows Key + D : To Show Desktop
Windows Key + C :  Open Charms Menu
Windows Key + F : Charms Menu – Search

Windows Key + H : Charms Menu – Share
Windows Key + K : Charms Menu – Devices
Windows Key + I : Charms Menu – Settings
Windows Key + Q : Search For Installed Apps
Windows Key + W : Search Settings
Windows Key + E : Launch Windows Explorer Window
Windows Key + L : Lock PC and go to lock screen
Windows Key + T : Cycle through icons on taskbar (press Enter to launch app)
Windows Key + X : Show Advanced Windows Settings Menu
Windows Key + E : Launch Windows Explorer Window
Windows Key + M : Minimize all Windows
Windows Key + P : Choose secondary display modes
Windows Key + U : Open Ease of Access Center

Windows Key + Tab : Cycle through open Modern UI Apps
Windows Key + Shift + Tab : Cycle through open Modern UI Apps in reverse order
Windows Key + . : Snaps app to the right (split screen multitasking)
Windows Key + Shift + . : Snaps app to the left (split screen multitasking)
Windows Key + , : Temporarily view desktop
Alt + F4 : Quit Modern UI Apps

Windows Key + Page Up : Moves Start screen and apps to secondary monitor on the left
Windows Key + Page Down : Moves Start screen and apps to secondary monitor on the right

Windows Key + Shift + M : Restore all minimized Windows
Windows Key + R : Open Run dialog box

Windows Key + Up Arrow : Maximize current window
Windows Key + Down Arrow : Minimize current window
Windows Key + Left Arrow : Maximize current window to left side of the screen
Windows Key + Right Arrow : Maximize current window to right side of the screen

Ctrl + Shift + Escape : Open Task Manager
Windows Key + Print Screen : Takes a Print Screen and saves it to your Pictures folder

Windows Key + Pause Break : Display System Properties
Shift + Delete : Permanently delete files without sending it to Recycle Bin

Windows Key + F1 : Open Windows Help and Support
Windows Key + V : Cycle through notifications
Windows Key + Shift + V : Cycle through notifications in reverse order

Windows Key + 0 to 9 : Launch/show app pinned to taskbar at indicated number
Windows Key + Shift + 0 to 9 : Launch new instance of app pinned to taskbar at indicated number

Alt + Enter : Display Properties of selected item in File Explorer
Alt + Up Arrow : Display Normal Landscape View
Alt + Right Arrow : Display Right Portarit View
Alt + Left Arrow : Display Left Portarit View

Alt + Down Arrow : Display Down Landscape  View

Alt + Print Screen : Print Screen focused Window only

Windows Key + Spacebar : Switch input language and keyboard layout
Windows Key + Shift + Spacebar : Switch to previous input language and keyboard layout
Windows Key + Enter : Open Narrator
Windows Key + + : Zoom in using Magnifier
Windows Key + - : Zoom out using Magnifier
Windows Key + Escape : Exit Magnifie

I will update More short Cuts by investigating Further :P