Hello Baha11111,
I'm John an Independent Advisor and a Microsoft user like you. I'll be happy to assist you today. I understand you want to remove extra input methods.
Please try this if it helps.
Press Start then search Powershell
Right Click then Run as administrator
Paste the command below then hit Enter:
$UserLanguage = New-WinUserLanguageList en-US
After that, Paste the command below then hit Enter:
Set-WinUserLanguageList $UserLanguage
Press Y then Exit Powershell
Restart your computer
After restart, English (United States) will be the only language under Preferred Languages. Kindly add Chinese language again.
Kindly let me know if this helps or if you have any further concerns.
Sincerely,
John DeV
Independent Advisor