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 Chrome 'ERR_CONNECTION_REFUSED' Due to Proxy Settings
You're trying to load a website, but Chrome shows ERR_CONNECTION_REFUSED. The pa...
Fix Outlook 502 Bad Gateway Error on Windows 10
If you see a 502 bad gateway error in Outlook on Windows 10, it usually means the connection betw...
Fix Chrome Profile File Locked After Crash
If Chrome crashes and you see a message that your profile file is locked, it usually means Chrome...
How to Fix 'PowerShell Command Not Found' in Terminal
When you type a PowerShell command in your terminal and see command not found, it us...
Outlook Update Troubleshooting Checklist: Fix Common Issues
When an Outlook update fails or gets stuck, it can stop you from accessing email. This checklist ...
Topic paths
Quick titles
Python Module Not Found After pip install: Causes and FixesPowerShell Token Expired Not Refreshing – Fix GuideWindows Defender and Third-Party Antivirus Port ConflictWindows Cannot Connect to Activation Server FixHow to Repair Outlook After a Windows UpdateFix Windows Defender Error 404 Reinstall GuideMongoDB Compass Mac Connection Refused TroubleshootingHow to Resolve 'clear' Not Recognized in Windows Terminal