
Windows Defender Troubleshooting Guide for IT Admins
Windows Defender (Microsoft Defender Antivirus) is the default endpoint protection in Windows 10 ...

Windows Defender (Microsoft Defender Antivirus) is the default endpoint protection in Windows 10 ...

You're editing a file in Microsoft Teams and see the message: "This file is locked by another use...

You click the Windows Security icon, but it doesn't open. Or you see an error saying the service ...

When you try to open Windows Security (formerly Windows Defender Security Center) and see a messa...

If you've booted into Safe Mode and Windows Defender won't start, shows a loading spinner indefin...

You try to open Chrome and get a message that says something like “Your profile could not be open...