Windows Defender Real-Time Protection Won't Turn On: Fixes
You open Windows Security, toggle real-time protection on, but it slides back to off. This is a c...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix 'Port Already Allocated' Error After Windows Update
After a recent Windows update, you might see an error like 'port already allocated' when starting...
Fix Windows Defender Blank Screen in Windows 10
If you open Windows Defender Security Center in Windows 10 and see nothing but a blank white or g...
How to Fix Windows Security Connection Refused Error
You open Windows Security and see a "Connection refused" error when trying to update virus defini...
Fix Windows Search Not Working After Update
After a Windows update, you might click the Start menu or press the Windows key and type, only to...
How to Investigate PowerShell High Memory Usage in Task Manager
If you open Task Manager and see PowerShell consuming hundreds of megabytes or even gigabytes of ...
Topic paths
Quick titles
Windows Update Causing Outlook Proxy Error? Try These FixesChrome Profile Access Denied vs Corrupted Profile: FixesHow to Change Windows Update Service Log On AccountChrome Profile Won't Auto-Start on Windows 10Unblock Chrome Extensions Blocked by AdministratorStep-by-Step Windows Security TroubleshooterCommand Prompt Connection Failed Permission Denied GuideHow to Disable Rate Limiting in Windows Security