Fix Windows Defender Service Not Starting (Error 404)
If you see error 404 when trying to start Windows Defender, it usually means the service executab...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listWindows Defender Setup Checklist for Small Business
If you're setting up Windows Defender for a small business, you might be wondering if the built-i...
Fix Microsoft Store Setup Stuck on Loading Screen
You open the Microsoft Store app for the first time or after an update, and it sits on a spinning...
Fix Microsoft Teams Authentication Loop Issue
You sign in to Microsoft Teams, but instead of loading, it keeps prompting you to sign in again. ...
Windows Terminal Not Opening: Black Screen Fix Guide
If Windows Terminal opens to a black screen and nothing else, the issue is usually a corrupted pr...
Chrome Settings Not Saving? Here's How to Fix It
You change a setting in Chrome—default search engine, startup page, download location—but the nex...
Topic paths
Quick titles
How to Resolve Remote Desktop Cannot ConnectOneDrive Sync Token Expired: Windows 10 Fix GuideWindows Terminal Config Conflict TroubleshootingMicrosoft Teams Gateway Timeout Fix GuideTroubleshoot PowerShell Remoting Network ProblemsHow to Fix Chrome Network Error on AndroidChrome Tunnel Error Troubleshooting GuideEndless Restart Fix: Windows Startup Repair Login Loop