Checklists for software errors, setup, and tool workflows.

Chrome Memory Not Decreasing After Closing Tabs – Fixes

You close a dozen tabs, but Chrome still eats 2 GB of RAM. This is normal up to a point—Chrome ca...

Fix Windows Security App Missing from Start Menu

You open the Start menu, type “Windows Security,” but nothing appears. The app may have been unre...

Fix Docker Desktop Engine Stopped with Virtual Machine Error

You start Docker Desktop and see “Docker Desktop engine stopped” with a message about a virtual m...

Fix Nginx 'Permission Denied' Upstream Errors

When Nginx logs permission denied while connecting to an upstream (e.g., a Unix sock...

How to Fix Chrome High Memory Usage from Hardware Acceleration

If Chrome is using excessive RAM and your system feels sluggish, hardware acceleration might be t...

Fix Git SSL Certificate Problem: Unable to Get Local Issuer

You run git clone https://example.com/repo.git and get:

fatal: unable to acc...