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

Fix Windows Update 504 Gateway Timeout Related to Firewall Settings

If you see a 504 gateway timeout when running Windows Update, it usually means the update server ...

How to Fix Outlook '404 Not Found' When Opening Email Attachments

When you click an attachment in Outlook and see a '404 Not Found' error, it usually means the fil...

Fix Windows Security Offline Installer Error 0x80070643

You're trying to install Windows Security (formerly Windows Defender) using an offline installer,...

Command Prompt Setup Guide for Beginners

What is Command Prompt?

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

Fix PowerShell Ubuntu Missing Dependencies in WSL

When trying to install PowerShell on Ubuntu under WSL, you might see errors about missing depende...

Microsoft Store Not Working After Update: Troubleshooting Checklist

After a Windows update, the Microsoft Store may fail to open, load slowly, or display errors like...