Reset / Unpin all items in Windows 8 Start Screen quickly

Solution 1:

  1. Open Command Prompt (Admin) by pressing Win + X, A

  2. Copy these lines:

    del %LocalAppData%\Microsoft\Windows\appsFolder.itemdata-ms
    del %LocalAppData%\Microsoft\Windows\appsFolder.itemdata-ms.bak
    tskill explorer
    
  3. Right-click in Command Prompt and select Paste:

  4. Press Enter.

  5. You're done. Now the Windows 8 start screen will reset to its original state: