Checklists for software errors, setup, and tool workflows.

Fix Chrome Black Screen on Startup Due to Hardware Acceleration

If Chrome opens to a black screen after you launch it, the issue often involves hardware accelera...

Fix Windows Defender Real-Time Protection Not Running

You open Windows Security and see a yellow warning: "Real-time protection is off." Or you...

Fix Nginx Upstream Connection Refused in Docker

You have Nginx running, either on the host or in a container, proxying to another Docker containe...

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...

Fix Ethernet Connected but No Internet on Windows 11

You plug in an Ethernet cable, Windows 11 shows you're connected, but websites won't load...

How to Rebuild Taskbar Icon Cache in Windows 10

If your Windows 10 taskbar icons appear blank, wrong, or missing, the icon cache may be corrupted...