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

Fix Windows Defender Not Starting Due to Dependency Conflict

If Windows Defender won't start and you see an error about a dependency service or group failed t...

Fix Outlook Blank Screen After Office Installation

Symptom and likely cause

After installing or updating Microsoft Office, Outlook may open ...

Fixing Windows Security 502 Bad Gateway Errors

If you see a 502 Bad Gateway error in Windows Security (or the Windows Defender portal), it usual...

How to Fix Windows Security Rate Limit Error

You may see a Windows Security rate limit error when trying to open the app or run a scan. This o...

Fix PowerShell Token Expired Not Refreshing Automatically

If you're using PowerShell with Azure, Microsoft Graph, or Exchange Online modules, you may encou...

How to Fix Windows Defender Antivirus Disabled Permanently

If Windows Defender Antivirus stays disabled even after you try to turn it on, the problem is oft...