Fix Outlook Module Not Found Error 0x80040154
You open Outlook and get an error: 0x80040154 — "Class not registered" or "module no...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Security High Memory Usage (MsMpEng.exe)
You open Task Manager and see Windows Security (the process is MsMpEng.exe) using 500 MB or more ...
Fix PowerShell Access Denied Even When Running as Admin
You launch PowerShell as administrator, but commands still fail with "Access Denied." This is a c...
Fix Windows Security Blank Screen in Safe Mode
If you boot into Safe Mode and open Windows Security only to see a blank white or gray screen, yo...
Fix Windows Security Invalid Configuration Permission Denied
You open Windows Security and see 'Invalid configuration. Permission denied.' This usually means ...
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...
Topic paths
Quick titles
Fix PowerShell Module Not Loaded: Step-by-Step GuideFix Remote Desktop Timeout IssuesOutlook DNS Error Sending Email TroubleshootingVirtualBox Linux vboxdrv Permission Denied TroubleshootingFix Microsoft Store Permission Denied ErrorCloudflare SSL Flexible Mode Loop SolutionFix Windows Terminal DNS Error 0x80072746Outlook Send Permission Error Troubleshooting