Fix OneDrive Sync Module Not Found Error 0x8004de40
You see the error "Sync module not found" with code 0x8004de40 when trying to use OneDrive. This ...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix 'Windows Defender Failed to Start Due to Group Policy' Error
You may see an error saying 'Windows Defender failed to start due to group policy' when trying to...
Fix Chrome ERR_TUNNEL_CONNECTION_FAILED Proxy Error
When Chrome shows ERR_TUNNEL_CONNECTION_FAILED, it usually means a proxy connect...
Fix Windows Search for Mac Sync Issues with OneDrive
If you use OneDrive on a Mac and rely on Windows Search (via Boot Camp or a VM), you may notice t...
Fix Chrome Proxy Server Not Responding for a Profile
If Chrome shows 'proxy server not responding' only when you're using a particular profile, the pr...
Windows Defender Troubleshooting Guide for IT Admins
Windows Defender (Microsoft Defender Antivirus) is the default endpoint protection in Windows 10 ...
Topic paths
Quick titles
Outlook Slow in Windows 10? Try These SettingsFix OneDrive Sync Module Permission Denied ErrorWindows Security Migration Sync Issue TroubleshootingChecklist for Diagnosing Windows Activation 504 TimeoutFix Windows Terminal Login Loop After UpdateWindows Security Cache Troubleshooting StepsBitLocker Version Mismatch Fix GuideFix Outlook Offline Installer Configuration Failed Error