
Microsoft Store SSL Certificate Error: Troubleshooting Checklist
You open Microsoft Store and see an SSL certificate error—maybe “ERR_CERT_AUTHORITY_INVALID” or a...

You open Microsoft Store and see an SSL certificate error—maybe “ERR_CERT_AUTHORITY_INVALID” or a...

You open Outlook and see the message: "Outlook service unavailable. Cannot start Microsoft Outloo...

You set up a scheduled task, but it fails to start or runs erratically. Often the cause is a depe...

You're trying to install Windows Security (formerly Windows Defender) using an offline installer,...

You set the Windows Search service startup type to Automatic, but it still doesn't start automati...

If you open Windows Defender (now called Windows Security) and see only a blank white or black sc...