Hi there! My name is David. It’s a pleasure to help you today.
Thank you for posting your question.
According to your issue, I can suggest you run a Windows Defender Offline scan:
Go to "Virus & threat protection" > Scan options > Microsoft Defender Offline scan.
Additionally, I suggest using the Windows Malicious Software Removal Tool (MSRT) to try to remove these threats.
https://www.microsoft.com/zh-cn/download/details.aspx?id=9905
Download and run MSRT.
You can learn more about MSRT at the following link:
Let me know if the shared information has been helpful. Regards.