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

Fix Windows Defender Rate Limit Error & Permission Denied

When Windows Defender throws a "rate limit error" or "permission denied" message, it typically ha...

Outlook Stuck on Loading Safe Mode: Quick Fix Steps

You open Outlook and it keeps showing the loading screen or starts in safe mode repeatedly. This ...

Fix Windows Security 404 Not Found Permissions Issue

You open Windows Security and see a 404 Not Found error, or the app won't load at all. Often this...

How to Fix PowerShell Rate Limit Error 429

If you're using PowerShell to call REST APIs — especially Microsoft Graph, Azure, or GitHub — you...

Fix VirtualBox Kernel Driver Not Installed on Windows 10

Fix Windows Defender Service Not Running

If you see "Windows Defender service not running" or a red warning in Security Center, the underl...