
Fix 'Windows Defender Firewall Has Blocked' Error
You see a notification that Windows Defender Firewall has blocked an app or feature. This usually...
Software troubleshooting desk

You see a notification that Windows Defender Firewall has blocked an app or feature. This usually...

When you try to connect to a remote computer using Remote Desktop (RDP) and see a 'DNS lookup fai...

When you try to run Windows Update and see an error like 'The Windows Update service is not runni...

If you manage multiple Windows user accounts on a single machine or deploy Chrome across several ...

When backing up or restoring Outlook data, error 0x8004010f often appears with the message “The o...

When you see "connection refused on port 80" in Command Prompt, it usually means no program is li...