Fix High CPU Usage by MsMpEng.exe (Windows Defender)
If your system feels sluggish and Task Manager shows MsMpEng.exe using 30–100% CPU, Windows Defen...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix OneDrive Error 0x8004de40: Sign-In Issues
When you try to sign in to OneDrive and see error code 0x8004de40, the app usually stops syncing....
Fix Windows Defender Authentication Failed Group Policy Error
You may see an error saying "Windows Defender authentication failed" after applying a Group Polic...
FFmpeg Audio Out of Sync: Troubleshooting Checklist
If your FFmpeg-encoded video has audio drifting or jumping out of sync, you're not alone. This ch...
Windows Activation Service Unavailable in Safe Mode: Fix
When you boot Windows into Safe Mode, you may see an error that the Software Licensing service (s...
Fix Windows Defender High Memory Usage During Sync
You notice your PC slows down during file sync operations—OneDrive, Dropbox, or local sync tools—...
Issue queue
SitemapFix Chrome ERR_TUNNEL_CONNECTION_FAILED Caused by Antivirus
Troubleshoot OneDrive Version Mismatch Post-Update
Fix Task Scheduler Not Running Tasks
How to Resolve Chrome Authentication Failed on Windows 10
Windows Activation Edition Mismatch After Upgrade: Fix Guide
OneDrive SSL Certificate Error Fix
How to Trigger Windows Update on a Mac
Docker Desktop WSL Integration Guide
Step-by-Step Guide to Set Up BitLocker Backup to an External Drive
Fix Access Denied Errors When Opening Windows Terminal Log Files
BitLocker SSD Encryption: Tips and Troubleshooting
Fix Corrupted Chrome Profile on Mac
Troubleshoot OneDrive Version Mismatch Post-Update
Fix Task Scheduler Not Running Tasks
How to Resolve Chrome Authentication Failed on Windows 10
Windows Activation Edition Mismatch After Upgrade: Fix Guide
OneDrive SSL Certificate Error Fix
How to Trigger Windows Update on a Mac
Docker Desktop WSL Integration Guide
Step-by-Step Guide to Set Up BitLocker Backup to an External Drive
Fix Access Denied Errors When Opening Windows Terminal Log Files
BitLocker SSD Encryption: Tips and Troubleshooting
Fix Corrupted Chrome Profile on Mac