Windows Defender Rate Limit Error Troubleshooting Checklist
You might see a Windows Defender rate limit error when scanning files or updating definitions. Th...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
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Cause
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Fresh repair notes
All notesFix Windows Update Setup Failed Rollback Changes
When a Windows update fails and you see "Undoing changes" or "We couldn't complete the updates, u...
Fix Windows Security Not Launching at Startup
You restart your PC and notice Windows Security (formerly Windows Defender) isn't running. The ic...
FFmpeg Audio Out of Sync: Practical Fixes
You encoded a video with FFmpeg and now the audio is ahead or behind by a fraction of a second. T...
Windows Defender Setup After a Fresh Install
After a fresh Windows install, Windows Defender (now called Microsoft Defender Antivirus) is typi...
Fix Windows Defender Service Error 577: Step-by-Step
You try to start Windows Defender, but it fails immediately with error 577, often accompanied by ...
Issue queue
SitemapStop Windows Security from Using All Your Memory
Fix SearchIndexer.exe High CPU Usage by Rebuilding Index
FFmpeg Audio Delay Correction Guide
Windows Update Stuck on Loading Screen Fix
Checklist for Troubleshooting Windows Search Issues
Windows Update Blank Screen Troubleshooting
Fix Microsoft Teams Permission Denied Errors
How to Repair Windows Defender When It Won't Scan and Uses High CPU
Windows Defender Invalid Configuration Group Policy Fix
OneDrive Pending Sync After Windows Update Fix
How to Fix MySQL Workbench Cannot Connect to Localhost
Microsoft Teams Slow Loading Messages Troubleshooting
Fix SearchIndexer.exe High CPU Usage by Rebuilding Index
FFmpeg Audio Delay Correction Guide
Windows Update Stuck on Loading Screen Fix
Checklist for Troubleshooting Windows Search Issues
Windows Update Blank Screen Troubleshooting
Fix Microsoft Teams Permission Denied Errors
How to Repair Windows Defender When It Won't Scan and Uses High CPU
Windows Defender Invalid Configuration Group Policy Fix
OneDrive Pending Sync After Windows Update Fix
How to Fix MySQL Workbench Cannot Connect to Localhost
Microsoft Teams Slow Loading Messages Troubleshooting