How to Fix Authentication Failed in Command Prompt
When you see 'authentication failed' in Command Prompt, it usually means the system couldn't veri...
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View listHow to Set Up Windows Security Proxy Settings
If you've noticed that Windows Security isn't updating or connecting to the cloud for threat defi...
Windows Defender 502 Bad Gateway: Troubleshooting Checklist
If you see a 502 Bad Gateway error when opening Windows Security or trying to update Windows Defe...
Fix Windows Update Error Due to Port 80 Already in Use
Windows Update may fail with error 0x8024402c or similar when another application is already usin...
Fix Windows Security DNS Error Permission Denied
You may see a 'permission denied' error when Windows Security tries to access DNS settings. This ...
Fix Windows Search Module Not Found Error Code
You open Windows Search or File Explorer, type a query, and get an error like "Windows Search mod...
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