It is reported that Win11 cannot log in to Microsoft Defender after installing the August update

CTOnews.com August 17 news, according to foreign science and technology media Windows Latest reports, some Win11 users after installing the August update, there is a problem of unable to log in to Microsoft Defender.

CTOnews.com Note: Microsoft Defender here is not a Windows Security application, the main function of this application is to securely review all connected devices and provide users with a unified security management control panel.

Windows devices that have been purchased for Microsoft 365 subscriptions will be automatically installed with Microsoft Defender applications.

Users report that opening the Microsoft Defender application will get a "unable to log in" error after installing the August update.

Through in-depth investigation, Windows Latest found that the main cause of this problem is not the cumulative update of Win11, but the update for Microsoft Defender in August.

Microsoft has not yet acknowledged the above problems.

Related readings:

"Microsoft updates Microsoft Defender for Win11/10: improving performance, blocking AutoKMS"