If you use Chinese IME input, you may experience a problem where the Ctrl + Space hot key cannot be disabled even you changed the settings in the Regional & Language window. And the hot key may cause some troubles when you playing a game or programming. Unfortunately, there is no fix to disable the hot key. It seems that it is a bug exits since Windows XP era.
To disable the hot key, we need to do some mod in the Windows registry as follows (It’s very simple):
– Open your “regedit.exe” by typing the term into the run dialog.
– Browse the registry editor to the location: HKEY_CURRENT_USER\Control Panel\Input Method\Hot Keys\
– Now delete registry entries that with the name: 0000007x (x indicates any number)
Note: Don’t delete 0000001x. You may also leave 000002xx, if the problem can be fixed. Of course, if you want to use the hot key in future again, simply export the registry item HKEY_CURRENT_USER\Control Panel\Input Method\Hot Keys. Import the file when you want to use the feature.
– Log off OR restart your Windows
This will disable the Ctrl + Space language switching hot key.