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

Fix PowerShell 502 Bad Gateway After Windows Update

After a recent Windows update, you may encounter a 502 Bad Gateway error when using PowerShell to...

How to Enable Windows Security Real-Time Protection

If you see a warning that real-time protection is off, or you suspect your PC is vulnerable, here...

Windows Terminal DNS Error Troubleshooting Checklist

If you're seeing DNS errors in Windows Terminal—like Name or service not known in WS...

Fix Remote Desktop Certificate Error 0x80090322

When connecting to a remote desktop, you might see error 0x80090322. This usually appears as a me...

Fix 'bitlocker command not found' Error When Enabling BitLocker

When you try to enable BitLocker from the command line or a script, you might see an error like <...

Certbot Renewal Failed Due to Nginx Configuration: How to Fix