Knowledge base for software setup, errors, and daily tool work.

Where Nginx Logs 404 Errors: Location & Troubleshooting

When nginx returns a 404 Not Found, the first step is checking the error logs. This article cover...

Fix PowerShell Not Opening After Windows Update

After a Windows update, you might find that PowerShell won't open at all—no window appears, or it...

Fix Windows Defender Threat Service Not Running Error

You open Windows Security and see a yellow warning: “Threat service has stopped. Restart it now.”...

Fix Windows Update Error 0x80070020: File Locked

You try to install Windows updates but get error 0x80070020. This usually means another program o...

Fix Command Prompt DNS Lookup Failed Error 0x80072ee7

How to Fix the Chrome Profile File Locked Error

You try to open Chrome and get a message that says something like “Your profile could not be open...