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

Certbot Nginx Plugin Permission Denied: Fixes and Checks

When running Certbot with the nginx plugin, you may encounter a 'Permission denied' error. This u...

Windows Security Firewall Configuration Checklist

If you've ever enabled the Windows Firewall and suddenly lost access to a shared printer or could...

Fix Windows Security Not Starting Automatically After Boot

You boot your PC and notice Windows Security (formerly Windows Defender) isn't running. The icon ...

PowerShell Setup Guide for Beginners: A Practical Checklist

If you're new to PowerShell and want to get started without confusion, this checklist walks throu...

Fix Microsoft Store Error 0x80073cf3 After Update

If you see error 0x80073cf3 when opening the Microsoft Store after a Windows update, the store ap...

Fix KMS Activation Error: Port 1688 Already in Use