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

How to Reinstall the Windows Security App (Microsoft Defender)

If the Windows Security app (Microsoft Defender) is missing, won’t open, or shows errors, reinsta...

Fix 504 Gateway Timeout with Curl Command

When you see a 504 Gateway Timeout error, it means a server upstream (like a proxy or gateway) di...

BitLocker Offline Installer Setup Guide for Windows 10

If you need to enable BitLocker on a Windows 10 machine that has no internet access, the standard...

How to Fix Outlook Rate Limit Error

If you see an error like "You've hit a temporary limit" or "Try again later" when sending email i...

Fix WSL Ubuntu Internet Not Working After Windows Restart