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 Profile Authentication Failed After Update
After a Chrome update, some users see a persistent authentication failure when trying to sign in ...
Fix Task Scheduler Configuration Not Saving
You set up a task in Windows Task Scheduler, click OK, and later find the changes didn't stick. T...
Fix Firefox Not Responding When Opening a New Tab
You click the new tab button (or press Ctrl+T) and Firefox freezes, goes white, or shows a spinni...
Fixing Gradle Build SSL Handshake Failures
You run a Gradle build and see an error like javax.net.ssl.SSLHandshakeException or ...
Fix Cloudflare DNS Not Working on Router Setup
If you've set Cloudflare DNS (1.1.1.1, 1.0.0.1) on your router but devices still can't resolve do...
Topic paths
Quick titles
Windows Defender Not Working on Mac? Try This ChecklistWindows Defender Firewall Blocking App: How to AllowFix Microsoft Teams Stuck on Loading ScreenRemote Desktop 0x4 Connection Error GuideReset Outlook Configuration ChecklistWindows Terminal Permission Denied Error FixHow to Fix Microsoft Store Network ErrorMac Chrome Module Not Found Error Solutions