How to Fix 'Windows Defender Module Not Found' Error
If you see 'Windows Defender module not found' when trying to open Windows Security or run a scan...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix PowerShell Profile Causing Blank Screen at Startup
You open PowerShell, see a blank screen with no prompt, and the window appears frozen. This usual...
Fix OneDrive Connection Refused Error 0x8004de40
You see OneDrive error 0x8004de40 with the message "Connection refused." This often happens when ...
Firefox Not Responding: Clean Reinstall Guide
If Firefox freezes, crashes, or shows a "not responding" message repeatedly, a clean reinstall ca...
Fix Windows Search High CPU Usage When Not Indexing
You may notice high CPU usage from a process called SearchIndexer.exe or RuntimeBroker.exe, even ...
Windows Terminal Configuration Checklist
You've installed Windows Terminal but it's not quite behaving the way you want. Maybe the colors ...
Topic paths
Quick titles
Remote Desktop Reset Not Working – FixesFix OneDrive Sync Error 0x8004de40: Step-by-Step GuideOutlook SSL Certificate Error: Step-by-Step FixesWindows Search Index Not Working?How to Stop Windows Defender from Using 100% CPUFix Windows Activation Error: DNS Name Does Not ExistHow to Resolve Defender Module Not FoundOutlook Proxy Authentication Failed: Quick Fixes