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

Kubernetes kubectl Connection Refused: Causes and Fixes

You run a kubectl command and get "connection refused". This usually means kubectl can't reach th...

Command Prompt High CPU Usage: Sysadmin Checklist

When Command Prompt (cmd.exe) consumes excessive CPU, it often indicates a runaway batch script, ...

Configure Remote Desktop for Multiple Users on Windows

If you need multiple users to log into the same Windows machine at the same time via Remote Deskt...

Fix 'Service Unavailable' for PowerShell on Windows 10

You open PowerShell on Windows 10 and see an error like "Service Unavailable" or "PowerShell is n...

How to Fix Windows Update Error 0x80070643

When Windows Update fails with error 0x80070643, the update usually stops at a certain percentage...

Fix Outlook High CPU Usage Caused by Antivirus Scanning

Symptoms and Likely Cause

You notice Outlook consuming 50% or more CPU, making your syste...