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 Activation Cache: Location and How to Delete
If you're getting activation errors after a hardware change or a Windows update, a corrupted acti...
OneDrive DNS Error Troubleshooting Guide
If you see a DNS error when trying to sync or access OneDrive, it usually means your computer can...
Fix Microsoft Store File Locked Error Without Resetting
You try to update or install an app from the Microsoft Store, and it stops with a message about a...
How to Fix Windows Defender 'Command Not Found' Error
You open Command Prompt to run MpCmdRun.exe or Get-MpPreference and get...
Chrome Profile 404 Error After Update: Fixes
After a Chrome update, you might see a '404 not found' error when trying to access your profile. ...
Topic paths
Quick titles
Fixing Brave Sync Error Code 0: Causes and SolutionsTroubleshooting BitLocker Version MismatchHow to Bypass PowerShell Execution Policy for One ScriptResolve Task Scheduler Access Denied Post-UpdateFix Windows Activation Error 0xc004f074Fix Task Scheduler SSL Certificate ErrorsChrome Profile Connection Refused After Update FixHow to Stop Antivirus from Causing Store Memory Leaks