How to Fix 'Windows Security Blocked File from Opening' Error
You try to open a file, and Windows Security blocks it with a message like “Windows Security bloc...
Software comparisons, alternatives, and tool decision notes.
Fit
Decision
Migration
Latest comparisons
Browse labWindows Activation Network Troubleshooting Checklist
If Windows won't activate and you're seeing errors like "We can't activate Windows on this device...
Fix PuTTY Connection Refused After Server Restart
You restart your server, open PuTTY, and see "Connection refused". This is a com...
How to Fix Outlook DNS Error Configuration
When Outlook can't connect to your email server, a DNS error configuration is often the culprit. ...
How to Set Proxy in Command Prompt (Windows)
If you need to route traffic through a proxy server on Windows, you can set proxy settings direct...
How to Fix Outlook Proxy Authentication Failed Error
You try to send or receive email in Outlook and see an error: "Proxy authentication failed"