1. Clear your browser's cache and cookies. You can see how to do it in major browsers from the links below.
2. Select Microsoft 365 from the “Sign in with third party account” section on the login screen of the Blackboard login page.

3. Enter your MEF e-mail address and password on the next screen.

4. Download the application called "microsoft authenticator" to your phone.

5. Open the application and log in by scanning the QR code on your computer screen from your phone.
After completing these operations, you can easily log in with Microsoft 365.
6. If you get an error regarding Multi-Factor Authentication at this stage, write to itsupport@mef.edu.tr and request support for MFA setup.