Did you follow the suggestion of a comment?

來源: 2012-10-17 10:38:30 [博客] [舊帖] [給我悄悄話] 本文已被閱讀:

Anyone still need a solution for this? I just experienced this an hour ago.

What I did was I booted my computer

Pressed F8> then select "Repair Your Computer" from the list>

then login your account> Select The Keyboard Layout> Then select "System Restore".

Just wait for the system restore to finish, then restart your computer. And it should work fine again.