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

Fix Windows Search 502 Bad Gateway Due to Proxy Settings

If Windows Search returns a 502 Bad Gateway error, it's often because the search service is tryin...

Fix Ubuntu apt Lock Stuck Waiting for It to Disappear

If you see 'Waiting for it to disappear' when running apt commands on Ubuntu, another apt process...

Command Prompt High CPU Usage: Sysadmin Checklist

When Command Prompt (cmd.exe) consumes excessive CPU, it often indicates a runaway batch script, ...

Fix Outlook Blank Screen After Office Installation

Symptom and likely cause

After installing or updating Microsoft Office, Outlook may open ...

Fix Chrome Proxy Error 'Connection Refused' (Step-by-Step)

You try to open a website in Chrome and get 'ERR_CONNECTION_REFUSED' or 'Proxy server is not resp...

How to Fix 'SQLite Database is Locked' in Python

If you're seeing sqlite3.OperationalError: database is locked in a Python script, it...