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 Search 502 Bad Gateway Error Code
You may see a 502 Bad Gateway error when using Windows Search, especially if you rely on web sear...
Fixing Windows Defender Authentication Failed Permission Denied
You try to run a Windows Defender scan or update, but get an error like "Authentication f...
Fix Windows Defender Real-Time Protection Permission Denied
You try to turn on real-time protection in Windows Security, but get a 'permission denied' messag...
How to Fix OneDrive 404 Error When Opening Shared Files
When you click a shared OneDrive link and see a 404 error, the file is not deleted or corrupted—u...
How to Fix Remote Desktop Error Code 0x4 Extended
When you try to connect to a remote desktop and see error code 0x4 extended, the connection fails...
Topic paths
Quick titles
Troubleshoot Error 0x8024402c in Windows Update SetupHow to Clear Chrome Profile Cache Without Losing PasswordsFix Windows Activation Server Timeout Error 0x80072efdOneDrive High Memory After Update: Quick FixesResolve Remote Desktop Black Screen IssueFix GPG Error in apt update on Ubuntu 22.04Fix Windows Security 404 Error & Missing FilesHow to Fix Windows Update Error 0x8024401c Proxy Permission Denied