Knowledge base for software setup, errors, and daily tool work.

Fix Maven Dependency Resolution Failed in IntelliJ

How to Fix a CMD 'Cannot Connect to Server' Error

When you see 'Cannot connect to server' in Command Prompt, it usually means a network issue, a fi...

Nginx 404 Not Found Troubleshooting Checklist

When nginx returns a 404 Not Found error, it means the server is running but cannot locate the re...

How to Set Up Windows Security for Network Access

If you're having trouble accessing network resources—like shared folders, printers, or internet c...

Fix Windows Search Proxy Error 0x80070490

If you see error 0x80070490 when using Windows Search, it usually means a system component is mis...

How to Set Up PowerShell Execution Policy for Scripts

When you try to run a PowerShell script, you might see an error like … cannot be loaded bec...