Wanna make undeletable Folder, then follow these steps :

 1. Press windows key and r (start-run)
 2. type 'cmd' for command prompt
 3. select your drive (e.g.: d:) and press enter
 4. type 'md con\' and press enter
 Now You have created the undeletable
 folder !
 How to delete it?
 1. Press windows key and r (start-run)
 2. type 'cmd' for command prompt
 3. select your drive (e.g.: d:) and press enter
 4. type 'rd con\' and press enter now your folder will be delete .... !
 Enjoy !

Windows 8 Hot Keys !

 *Here are some of the useful shortcuts*

 Windows key Shows the New Start screen (Metro).
 Win + type keyword Instant application search (same as in Windows 7).
 Win + D Standard Windows desktop. Also minimizes/restores all open windows in desktop mode.
 Win + Q Shows all installed apps.
 Win + W Instant search for settings.
 Win + F Instant search for files.
 Win + I Settings sidebar (control panel, network, volume, brightness, notifications, and more).
 Win + P Shows multi-monitor options, also useful for connecting an external monitor or projector.
 Win + X Power user shortcut menu (Device Manager, Control Panel, Command Prompt, Power Options, etc.).
 Win + Z Shows App Bar in Metro applications.
 Win + . (period) Snaps the current Metro app to the right side of the screen. Do it twice and it will snap to the left.
 Win + . (period) + Shift Snaps the current Metro app to the left side of the screen.
 Win + J Switches focus between snapped Metro apps.
 Win + Page Up / Down Moves full-screen Metro app to secondary monitor.
 Win + Left / Right arrow Moves and snaps desktop applications in that direction, or to a different monitor.
 Win + Tab Switches between open applications. Similar to using the left-upper hot corner with a mouse.
 Win + L Locks Windows.

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