Explorer.exe process may crash when you tap or click the desktop in Windows 8 or Windows Server 2012, Follow this Microsoft KB2795719
Assume that you use one of the following input methods on a Windows 8-based or Windows Server 2012-based computer that has update 2770917 installed:
•Korean
•Chinese Traditional
•Chinese Simplified
While the desktop is open, you tap or click the Settings charm, and then you tap or click the desktop. In this situation, the Explorer.exe process may crash.