Checklists for software errors, setup, and tool workflows.

How to Fix Chrome Not Opening on Windows 10

If Chrome won't open on Windows 10, you might click the icon and see nothing happen, or get a bri...

How to Fix Apache Service Not Starting on Windows

When Apache fails to start as a service on Windows, the event log usually shows a generic error. ...

Fix PuTTY Connection Refused After Server Restart

You restart your server, open PuTTY, and see "Connection refused". This is a com...

How to Enable Windows Security Real-Time Protection

If you see a warning that real-time protection is off, or you suspect your PC is vulnerable, here...

How to Fix '404 Not Found' File Path Errors in CMD

When you run a command in the Windows Command Prompt and see '404 Not Found' or

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...