Hi PichuWong,
I'm Paul and I'm here to help you with your concern.
Please try the solutions below.
1. Install the latest Window Updates.
2. Use System File Checker to check and fix corrupted system files that may be the cause of the issue. Please refer to the link.
https://support.microsoft.com/en-us/help/402652...
3. Enable Bing search integration.
note: I recommend that you create a System Restore point before changing a value in the registry.
>>Open Command Prompt as Administrator.
>>Enter the command below.
reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Search /v BingSearchEnabled /t REG_DWORD /d 1 /f
>>Restart your Windows 10 PC.
I hope this helps. Feel free to ask back any questions and keep me posted.