
Windows Defender Service Troubleshooting Checklist
If Windows Defender won't start, won't update, or shows error messages like "Service stopped" or ...

If Windows Defender won't start, won't update, or shows error messages like "Service stopped" or ...

You try to open Outlook and see a message that your data file (.pst or .ost) is locked. Often thi...

When you connect to a remote desktop and see a certificate error, the connection may still work, ...

You set a task in Windows Task Scheduler to run at a specific time, but it doesn't trigger. The t...

When installing Google Chrome, error 0x80070005 usually appears as a pop-up saying “Installation ...

When a scheduled task fails with an authentication error, the task typically can't log in as the ...