Checklists for software errors, setup, and tool workflows.

Fix OneDrive Sync Blocked by Network Firewall

If OneDrive stops syncing and you see errors like "Sync is blocked" or files stay stuck with a sp...

Fix CMD Service Unavailable Due to Group Policy

Situation

You open Command Prompt and see an error like "Command Prompt has been disabled...

GitHub Actions Runner Not Connecting: Fixes That Work

You've set up a self-hosted GitHub Actions runner, but it never appears online or shows a "runner...

How to Fix Windows SSL Certificate Error in Chrome

If you see "Your connection is not private" or "NET::ERR_CERT_DATE_INVALID" in Chrome on Windows,...

How to Clear Windows Terminal Cache and Reset Settings

Windows Terminal can sometimes behave oddly—profiles missing, colors wrong, or it won't start. Of...

How to Fix Windows Defender Service Won't Start

When Windows Defender won't start, you'll likely see an error like "The service did not respond t...