Hi kjeldahlofMicrosoft,
Welcome to Microsoft Community.
Not sure if this issue will refer to your non-Unicode settings since you seem once have multi languages installed, but I think there are some steps we should try:
- Click Start, type control and hit Enter, then we should have 控制面板 opened.2. Find and open 区域, then go to the 管理 tab, click 更改系统区域设置.3. If Beta版: 使用 Unicode UTF-8 提供全球语言支持 is checked, please uncheck it, and vice versa. Please reboot your computer as requested and confirm if the issue is gone.4. If the issue still persist, please change 当前系统区域设置 to any lanaugage you have ever changed to/installed (like Japanese as you shown in your "fig.3".
Please feel free to let me know how it goes.
Best Regards,
Manson | Microsoft Community Support Specialist