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

Common Causes of Nginx Configuration Test Failure

When you run nginx -t and see an error, it usually means a syntax mistake, a missing...

Fix Discord Black Screen from Chrome Hardware Acceleration

Why Chrome Hardware Acceleration Causes Discord Black Screen

When Chrome uses hardware a...

Fix Windows Update Service Not Running After SFC Scan

If you ran an SFC scan to fix system file corruption and now the Windows Update service won't...

Docker: No Space Left on Device After Pulling Image

You pull a Docker image and get no space left on device. The image might be small, b...

Fix Nginx Upstream Connection Refused Error

If you see upstream connection refused in your Nginx error logs, it means Nginx trie...

How to Fix Edge Sync Stuck on Preparing Sync

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