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

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

How to Fix Windows Security High Memory Usage

You open Task Manager and see Windows Security (or Antimalware Service Executable) using 500 MB o...

Postman Request Timeout Causes and Fixes

You send a request in Postman, wait, and get a timeout error. This is frustrating but usually fix...

Windows Defender Error 504 Setup Guide

If you see error 504 while setting up Windows Defender, it usually means a network timeout or pro...

How to Fix Outlook Service Unavailable Error

When Outlook shows a 'service unavailable' error, you usually cannot send or receive emails. This...

Fix 'PowerShell Is Not Recognized' Error on Windows

You type a PowerShell command in Command Prompt or a script and see: 'powershell' is not re...