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

Fix Windows Update Error 0x80070020: Port Already Allocated

When you see error 0x80070020 during a Windows Update, it usually means a program is already usin...

Command Prompt Setup Guide for Beginners

What is Command Prompt?

Command Prompt is a text-based interface in Windows that lets you...

How to Fix Windows Activation Service Not Running or Disabled

If you see an error that the Windows Activation Service is not running or disabled, it usually me...

Outlook Stuck Loading When Opening Attachments? Try These Fixes

You double-click an attachment in Outlook, and the progress bar just spins. No preview appears, a...

Fix 'Windows Defender Firewall Has Blocked' Error

You see a notification that Windows Defender Firewall has blocked an app or feature. This usually...

How to Enable Remote Desktop Auto Start on Windows Startup

You may find that after restarting your PC, Remote Desktop (RDP) is not running, and you have to ...