Checklists for software errors, setup, and tool workflows.

Fix Discord Black Screen from Chrome Hardware Acceleration

Why Chrome Hardware Acceleration Causes Discord Black Screen

When Chrome uses hardware a...

How to Fix Nginx Upstream Connection Refused on Port 80

When nginx logs show "upstream connection refused" while connecting to port 80, it means ...

Fix 0x800f081f Error in Windows 10 Update

When you see 0x800f081f during a Windows 10 update, the update typically fails w...

How to Fix VS Code Source Control Not Detecting Changes

You open VS Code, edit a file, and expect to see it in the Source Control view. But the panel sta...

Fix DNS Probe Finished NXDOMAIN After Changing DNS

After updating your DNS settings—perhaps to use Google Public DNS or Cloudflare—you might see the...

Update Git SSL Certificates to Fix 'unable to get local issuer'

If you see fatal: unable to access 'https://...': SSL certificate problem: unable t...