This was solution for me to get rid of windows key shortcuts:
- Go to Start > Type in regedit and start it
- Navigate to HKEY_CURRENT_USER/Control Panel/Input Method/Hot Keys
- Select the key named: 00000070 for the Chinese (Traditional) IME -
Ime/NonIme Toggle hotkey 00000010 for the Chinese (Simplified) IME -
Ime/NonIme Toggle hotkey
- In the right sub-window, there are three subkeys. Key Modifiers
designate Alt/Ctrl/Shift/etc and is set to Ctrl (02c00000). Virtual
Key designates the finishing key and is set to Space (20000000).
- Change the first byte in Key Modifiers from 02 to 00
- Change the first byte in Virtual Key from 20 to FF
- Log off and log back on. I don't think it's necessary to restart.
- Do not change the Hot keys for input languages in Control Panel,
unless you want to do this all over again.
https://superuser.com/questions/327479/ctrl-space-always-toggles-chinese-ime-windows-7