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

Certbot Renewal Failed Due to Nginx Configuration: How to Fix

Windows Defender SSL Certificate Error Configuration Guide

If you see SSL certificate errors when Windows Defender scans HTTPS traffic, it's usually due to ...

How to Fix OneDrive 'File Locked' or 'Permission Denied' Errors

When you see "File locked" or "Permission denied" in OneDrive, it usually means another process h...

Fix PowerShell Auto Start Not Working Due to Execution Policy

You set a PowerShell script to run automatically at startup, but it fails silently. The script wo...

Microsoft Store SSL Certificate Error: Troubleshooting Checklist

You open Microsoft Store and see an SSL certificate error—maybe “ERR_CERT_AUTHORITY_INVALID” or a...

Fix Command Prompt Token Expired Not Working

If you see a 'token expired' or 'not working' error in Command Prompt, it usually means an authen...