This video shows how to enable Chinese handwriting for windows 8.1 by downloading the Hong Kong (SAR) language pack from control panel

http://www.youtube.com/watch?v=WqIOcyItH_o

Tested with virtualbox 4.3.6
Succesfully upgrade from windows 8 to windows 8.1 after seeing the message ” sorry, you can’t install the update because it’s not supported by your computer’s CPU. more info ” in windows store

Use these shortcut same as ctrl+P ‘s 4 options

• %windir%\System32\DisplaySwitch.exe /internal
• %windir%\System32\DisplaySwitch.exe /clone
• %windir%\System32\DisplaySwitch.exe /extend
• %windir%\System32\DisplaySwitch.exe /external

waiting for root before update 🙁

http://support.microsoft.com/kb/297684