Consider the following scenario:
You have an East Asian language input method installed a Windows 8-based computer.
You start the Add a Device wizard to add a wireless device, such as a Bluetooth device.
You type your PIN during the pairing process when the East Asian language keyboard layout is selected.
In this scenario, the Next button remains disabled even after you finish typing the PIN.
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