Quote:Recent Windows 10 updates are causing the Input Method Editor (IME) for Chinese languages to become unresponsive or use a lot of CPU.
A Windows Input Method Editor, or IME, is a tool that can be installed to help enter complex characters in Asian languages.

Since the release of the release of the latest Windows 10 cumulative updates, users have been reporting [1. 2] that if they have a Chinese IME installed, Windows would utilize a lot of the computer's CPU.
 
If you have a Chinese IME installed and you are experience high CPU usage or the IME hangs, you can perform the following steps provided by Microsoft.

1. Select the Start button and type Services.
   
2. Locate Touch Keyboard and Handwriting Panel Service and double click on it or long press and select Properties.
   
3. Locate Startup type: and change it to Manual
   
4. Select Ok
   
5. The TabletInputService service is now in the default configuration and IME should work as expected
   

Quote:On September 19, however, Microsoft flagged this bug as resolved, explaining that it’s all caused by security-related changes made in the latest cumulative updates. While the problem is fixed now, there’s no patch that could address it on your device, and Microsoft points users to a manual workaround in this regard.
“Due to security related changes in KB4515384, this issue may occur when Touch Keyboard and Handwriting Panel Service is not configured to its default startup type of Manual,” the software giant explains.