Fix Windows Security Not Starting Automatically After Boot
You boot your PC and notice Windows Security (formerly Windows Defender) isn't running. The icon ...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listWindows Security Network Error on Windows 10: How to Fix
If you see a 'network error' message in Windows Security on Windows 10, the app can't connect to ...
How to Enable Windows Defender in Windows 10
If you're seeing a warning that Windows Defender is turned off, or you can't access its settings,...
How to Fix Windows Update Login Loop After Restart
After a Windows Update, you may find yourself stuck in a login loop—the system restarts, you ente...
How to Fix Windows Defender Not Turning On
Windows Defender (now called Microsoft Defender Antivirus) sometimes refuses to turn on or stay o...
How to Reinstall Microsoft Store Using PowerShell
If the Microsoft Store app is missing, won't open, or keeps crashing, you can reinstall it using ...
Topic paths
Quick titles
Outlook Setup Checklist for BeginnersChrome Keeps Crashing When Opening PDFsMicrosoft Teams Invalid Configuration Error FixHow to Fix BitLocker Permission Denied on Encrypted DrivesFix Common Chrome Browser Setup IssuesOneDrive Sync Broken After Windows Update? Try These FixesHow to Fix BitLocker Blank Screen After Recovery KeyHow to Fix Chrome Profile Error: Permission Denied