Checklists for software errors, setup, and tool workflows.

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Fix Windows Defender Service Not Starting (Error 404)

If you see error 404 when trying to start Windows Defender, it usually means the service executab...

Disable Windows Defender Real-Time Protection via Group Policy

If you're managing a Windows 10 or 11 Pro/Enterprise environment, you might need to disable Windo...

Fix Windows Search Update Error 0x80070005

When updating Windows Search, you may encounter error 0x80070005. This usually means Windows Upda...

Fix Firefox Secure Connection Failed Certificate Errors

You try to open a website in Firefox and see a full-page error: "Secure Connection Failed" with a...

Fix PostgreSQL Connection Refused Due to pg_hba.conf

When a client gets 'connection refused' from PostgreSQL, the first thing to check is the pg...

How to Fix Microsoft Store Service Unavailable Error
When you open Microsoft Store and see the error 'Service unavailable' or a message like 'Somethin...