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

Certbot Certificate Renewal Checklist: 8 Steps to Avoid Downtime

You set up automatic renewal with certbot, but one day your browser shows a security warning. The...

Fix Task Scheduler 'Unable to Connect to Network Resource' Error

When a scheduled task fails with 'unable to connect to network resource', the task cannot access ...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...

Chrome Extensions Not Loading? Troubleshooting Checklist

You open Chrome, click the puzzle piece icon, and your extensions are grayed out or missing entir...

Fix BitLocker 502 Bad Gateway Network Error

If you see a 502 Bad Gateway error when BitLocker tries to contact a network unl...

Fixing Composer Memory Limit Errors with Large Dependencies

You run composer install or composer update and see something like: