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

PowerShell Configuration Checklist for Beginners

If you're new to PowerShell and find it doesn't behave as expected—scripts won't run, commands ar...

How to Fix Windows Security High CPU Usage

If your PC feels sluggish and Task Manager shows Windows Security (or Antimalware Service Executa...

Fix Windows Defender Error 0x80070643 – Version Mismatch

You update Windows Defender and see error code 0x80070643. The update fails, and Defender may dis...

Resolving npm Dependency Conflicts After an Update

How to Re-enable Windows Defender Real-Time Protection

If you've disabled Windows Defender real-time protection—perhaps to run a specific tool or becaus...

Outlook 504 Gateway Timeout: Proxy and Firewall Fixes

If you see a "504 Gateway Timeout" error in Outlook, it usually means a network device (proxy or ...