Une solution intégrée de protection contre les menaces conçue pour détecter, enquêter et répondre aux cybermenaces sur l’ensemble des services Microsoft 365.
Hello Sanceenne,
Thank you for reaching out to the community what I can suggest is to install the Microsoft defender directly from the Microsoft store. Install the app and sign in with the same personal Microsoft account you used on your phone. Other than this to the bottom right you will see the Microsoft defender icon open it and sign in, now check for any prompts showing over there where you can see the word “Fix” button once its all done just simply restart the PC.
If you have any antivirus as well that could be blocking it will be better to disable it before doing any test. If your using family safety ensure device sharing is on.
I hope this answer is helpful if you have further questions feel free to reply back
Regards,
Marcelo