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

Fix Windows Security High Memory Usage

You open Task Manager and see Windows Security (or Antimalware Service Executable) using 500 MB o...

How to Fix systemd Service Restarting Repeatedly Error

Chrome 404 Not Found Error: Practical Fixes

Seeing a "404 Not Found" error in Chrome usually means the page you requested doesn't exist on th...

Ubuntu Task Scheduler vs Cron: Which to Use and When

If you need to run a script or command on a schedule in Ubuntu, you have two main options: the cl...

Nginx Permission Denied on Restart: Common Fixes

When you run sudo systemctl restart nginx or sudo nginx -s reload and s...

Fix 'Could not get lock /var/lib/dpkg/lock' Error on Ubuntu/Debian

You try to install a package with apt or dpkg, and you get the error: Could not get lock /v...