Checklists for software errors, setup, and tool workflows.

Fix Windows Defender Error 0x800704ec: Real-Time Protection

If you see error code 0x800704ec when turning on Windows Defender real-time protection, the servi...

Fix 'Python Virtual Environment Activate Command Not Found'

When you try to activate a Python virtual environment with source venv/bin/activate ...

Docker Container Exits Immediately: Diagnosing Out of Memory

You start a Docker container and it exits within seconds. The logs show nothing obvious, or they ...

How to Fix Edge Sync Stuck on Preparing Sync

You open Microsoft Edge, click your profile, and see 'Preparing sync' — but it never fini...

Chrome Extensions Not Loading from Web Store: Fix Guide

You click “Add to Chrome” on the Web Store, but nothing happens, or the extension never appears. ...

Fix Git index.lock File Exists Permission Denied Error

You're in the middle of a Git operation and suddenly you see:

fatal: Unable to ...