When the battery level on a portable computer that is running Windows RT or Windows 8 is low, the Explorer.exe process may crash. This issue occurs only when the computer is running on battery power.
To resolve this issue, install update rollup 2845533. For more information about how to obtain this update rollup package, click the following article number to view the article in the Microsoft Knowledge Base:
2845533 Windows RT, Windows 8, and Windows Server 2012 update rollup: June 2013
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates