An integrated threat protection solution designed to detect, investigate, and respond to cyber threats across Microsoft 365 services.
Hi Khalid_750
Thank you for posting in the Microsoft Community
I understand that you are having issues with Microsoft Defender
Regarding your issue, I have helped you search for relevant web pages. You can view the official link below. This text prompt does not view your personal information.
Installing Microsoft Defender - Microsoft Support
Best regards
Lele.X - MSFT | Microsoft Community Support Expert