Checklists for software errors, setup, and tool workflows.

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Bypass PowerShell Execution Policy for a Single Script

You have a PowerShell script that won't run because the execution policy is too restrictive. Inst...

Fix Windows Defender Threat Service Stopped & No Internet

You open Windows Security and see 'Threat service has stopped. Restart it now.' At the same time,...

Fix VirtualBox Kernel Driver Not Installed on Ubuntu

When you try to start a virtual machine in VirtualBox on Ubuntu and see the error 'Kernel driver ...

How to Fix Windows Update Error 404 Not Found

You see error 404 when checking for updates in Windows Update. This usually means the update serv...

MySQL Connection Refused Authentication Error Checklist

You're trying to connect to a MySQL server and you get one of these: ERROR 2003 (HY000): Ca...

How to Enable Windows Update Service When It Is Disabled
If Windows Update fails to run or you see an error like "Windows Update cannot check for updates"...