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

How to Fix Jupyter Notebook Token Authentication Error

When you start Jupyter Notebook, you might see a prompt asking for a token or password, or the br...

How to Fix PowerShell Connection Refused (Port Blocked)

When you try to connect to a remote system using PowerShell remoting (Enter-PSSession, Invoke-Com...

Fix Task Scheduler Error 0x80070422 on Windows

When you try to run a scheduled task or open Task Scheduler, you might see error 0x80070422. This...

Fix PowerShell Connection Refused or Permission Denied Errors

When you see Connection refused or Permission denied in PowerShell, it ...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

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

How to Fix Windows Defender High CPU Usage

If your system feels sluggish and Task Manager shows Windows Defender (Antimalware Service Execut...