Windows 8 is a new operating system with many new features for both tablet and PC users. Touchscreen users can take many advantage for easy navigation, e.g. the Charms Menu, Metro UI with tiles, and swipes. But keyboard users can also do easy navigation by using some easy shortcut keys.
Keyboard shortcut:
+ D => Show Desktop
+ C => Open Charms Menu
+ F => Charms Menu – Search
+ H => Charms Menu – Share
+ K => Charms Menu – Devices
+ I => Charms Menu – Settings
+ Q => Search For Installed Apps
+ W => Search Settings
+ Tab => Cycle through open Modern UI Apps
+ Shift + Tab => Cycle through open Modern UI Apps in reverse order
+ . => Snaps app to the right (split screen multitasking)
+ Shift + . => Snaps app to the left (split screen multitasking)
+ , => Temporarily view desktop
+ E => Launch Windows Explorer Window
+ L => Lock PC and go to lock screen
+ T => Cycle through icons on taskbar (press Enter to launch app)
+ X => Show Advanced Windows Settings Menu
+ E => Launch Windows Explorer Window
+ Page Down => Moves Start screen and apps to secondary monitor on the right
+ M => Minimize all Windows
+ Shift + M => Restore all minimized Windows
+ R => Open Run dialog box
+ Up Arrow => Maximize current window
+ Down Arrow => Minimize current window
+ Left Arrow => Maximize current window to left side of the screen
+ Right Arrow => Maximize current window to right side of the screen
+ Print Screen => Takes a Print Screen and saves it to your Pictures folder
+ Page Up => Moves Start screen and apps to secondary monitor on the left
+ Pause Break => Display System Properties
+ F1 => Open Windows Help and Support
+ V => Cycle through notifications
+ Shift + V => Cycle through notifications in reverse order
+ 0 to 9 => Launch/show app pinned to taskbar at indicated number
+ Shift + 0 to 9 => Launch new instance of app pinned to taskbar at indicated number
+ P => Choose secondary display modes
+ U => Open Ease of Access Center
+ Spacebar => Switch input language and keyboard layout
+ Shift +Spacebar => Switch to previous input language and keyboard layout
+ Enter => Open Narrator
+ + => Zoom in using Magnifier
+ - => Zoom out using Magnifier
+ Escape => Exit Magnifier
Alt + Print Screen => Print Screen focused Window only
Ctrl + Shift + Escape => Open Task Manager
Shift + Delete => Permanently delete files without sending it to Recycle Bin
Alt + Enter => Display Properties of selected item in File Explorer
Alt + Up Arrow => View upper level folder of current folder in File Explorer
Alt + Right Arrow => View next folder in File Explorer
Alt + Left Arrow => View previous folder in File Explorer
Alt + F4 => Quit Modern UI Apps
Check this also –> More Than 100 Main Keyboard shortcuts