Apple Kicks out the update for its Boot Camp software with support of new 2011 MacBook Pro models. This update fixes the unexpected shutdowns on early 2011 MacBook Pros.
From Official Release Notes:
This Boot Camp update addresses issues with shutdown, Japanese and Korean keyboards on early 2011 MacBook Pro
Also it fixes the issues occurring with Japanese and Korean Keyboards on early 2011 Macbook Pros. Download Boot Camp 3.2 installer from here.