
Fix Windows Security Service Not Running Error
You open Windows Security and see a red banner: “Windows Security service is not running.” Or you...

You open Windows Security and see a red banner: “Windows Security service is not running.” Or you...

You try to open Windows Security (Windows Defender) and see a network error like “Something went ...

When you see authentication errors in Windows Terminal—like 'token expired' or 'please sign in ag...

If you see a message that says "Invalid configuration" when opening Windows Security, the app usu...

You try to set up or send email in Outlook, and you see an error about port 587 already being all...

You open Microsoft Store and see a message about invalid configuration, or your apps won't sync. ...