I can't join a meeting in Microsoft Teams - Microsoft Support
If you can't immediately join a Teams meeting, there are several possible reasons: You're waiting in the lobby: Some organizers might place attendees in a lobby before admitting them into the meeting.Wait for someone to admit you, or reach out to the organizer directly to be let in.
Applies To: Microsoft Teams
Remove specific prevalent malware with Windows Malicious Software ...
If your computer is running: Follow these steps: Windows 11. Select the Start button, then select Settings > Windows Update .If you want to check for updates manually, select Check for updates.. Next to Get the latest updates as soon as they're available, set the toggle to On. Note Whether you set the toggle to Off or On, you'll still get the regular security updates as usual.