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

Fix Module Not Found Error in Command Prompt

If you're seeing 'module not found' in Command Prompt, it usually means the system can't locate t...

Fix Windows Security 504 Gateway Timeout After Driver Update

You open Windows Security and see a 504 gateway timeout error. The interface loa...

WinRAR Checksum Error Recovery Checklist

If you see a "Checksum error" in WinRAR, it usually means the archive is damaged or incomplete. T...

Fix Windows Terminal SSH Connection Timeout

You're trying to SSH into a remote server from Windows Terminal, but the connection times out aft...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

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

Fix Windows Defender Stuck Loading Error 0x80070422

If Windows Defender is stuck loading and you see error 0x80070422, the service may be disabled or...