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

Fix Windows Defender Real-Time Protection Not Starting

If you see a yellow warning or a message that real-time protection is off, Windows Defender’s cor...

Docker Compose Environment Variable Not Updating? Fix It

Fix git index.lock File Exists Error on Windows

If you see fatal: Unable to create 'index.lock': File exists. when running G...

Fix DNS Probe Finished NXDOMAIN After Changing DNS

After updating your DNS settings—perhaps to use Google Public DNS or Cloudflare—you might see the...

Cloudflare Origin Certificate Setup for cPanel

If you use Cloudflare as a reverse proxy, you can install a Cloudflare Origin Certificate on your...

Fix Windows Security App Access Denied Error

When you open Windows Security (formerly Windows Defender Security Center) and see an 'Access...