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 listHow to Fix a Task Stuck in Running Status in Windows Task Scheduler
You open Task Scheduler and see a task that has been in "Running" status for hours or days. It wo...
Windows Update Cleanup Stuck After Installing Updates
After installing updates, Windows may get stuck on the cleanup phase. The screen shows 'Cleaning ...
Windows Defender Version Mismatch: Practical Fix Checklist
If you see a “version mismatch” error in Windows Defender (Microsoft Defender Antivirus), it usua...
Fix Outlook Token Expired After Password Change
After changing your account password, Outlook may display a 'token expired' or 'credentials neede...
Complete Guide to Troubleshoot Windows Search Stuck Loading
If Windows Search gets stuck on "loading results" or shows a spinning cursor indefinitely, it's u...
Topic paths
Quick titles
PowerShell Proxy Error Fix GuideHow to Fix Cloudflare Error 525: SSL Handshake FailedCommand Prompt Keeps Closing Immediately: Fix GuideFix Corrupted Registry Causing Task Scheduler to Be UnavailableFix OneDrive Files On-Demand Not WorkingDownload PowerShell Offline Installer for Windows 10Fixing SQLite Database Locked and Permission Denied ErrorsBitLocker Not Prompting for Password After Boot: Fixes