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 listWindows Task Scheduler Service Not Starting: Fixes
If the Task Scheduler service won't start, scheduled tasks won't run and you'll likely see an err...
Fix 'Permission Denied' When Opening System32 in Command Prompt
When you try to run a command in C:\Windows\System32 from Command Prompt and see
How to Fix 'Access Denied' When Opening Command Prompt Log Files
When you try to view a log file from Command Prompt and get an 'Access Denied' error, it usually ...
Task Scheduler Module Not Found: Troubleshooting Guide
When you see 'Task Scheduler module not found' in Windows, scheduled tasks may fail to run. This ...
Fix Windows Defender Stuck Loading Service Not Running
If you open Windows Security and see 'Windows Defender Service not running' or it hangs on a load...
Topic paths
Quick titles
Fix Slow Command Execution in Command PromptFix 'Python Interpreter Path Not Found' in VS CodeWindows Defender Not Working? Post-Update FixesFix Edge Update Error 0x80070643Fix Chrome Profile Connection Refused or Permission DeniedGit Clone Publickey Error Mac TroubleshootingWindows Activation Not Working After Update: Fix GuideWindows 11 PowerShell Command Not Found – Quick Fixes