Fix Outlook Module Not Found Error 0x80040154
You open Outlook and get an error: 0x80040154 — "Class not registered" or "module no...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesRemote Desktop Clipboard Not Working in Windows 10: Fixes
You connect to a remote Windows 10 PC via Remote Desktop, but copy-paste between machines doesn't...
Fixing BitLocker Version Mismatch in Windows 10 Setup
When upgrading or reinstalling Windows 10, you might encounter a BitLocker version mismatch error...
Command Prompt Not Working After Windows Update: Fixes
After a Windows update, Command Prompt may fail to open, show a blank window, or close immediatel...
Windows Task Scheduler Missing Tasks: Fix Guide
If you open Task Scheduler and find that some or all of your tasks have disappeared, you're not a...
Fix OneDrive Sync Version Mismatch Error
You open OneDrive and see a sync error: "Version mismatch." This usually happens when your local ...
Issue queue
SitemapWindows File Locked by Another Program: How to Unlock
How to Fix Missing Windows Activation Module After Update
Fix Windows Activation SSL Certificate Error After System Restore
Outlook IMAP Port 993 Troubleshooting Guide
BitLocker High RAM After Update – Fixes
Resolve OneDrive Access Denied During Sync
Stop Microsoft Store from Using Proxy
Windows Defender High Memory Usage Fix
Restore Firefox Profile on Linux Using Terminal
Fix Remote Desktop Failed Due to Firewall Settings
BitLocker Paused After Update Troubleshooting
Troubleshoot Windows Defender Permission Error
How to Fix Missing Windows Activation Module After Update
Fix Windows Activation SSL Certificate Error After System Restore
Outlook IMAP Port 993 Troubleshooting Guide
BitLocker High RAM After Update – Fixes
Resolve OneDrive Access Denied During Sync
Stop Microsoft Store from Using Proxy
Windows Defender High Memory Usage Fix
Restore Firefox Profile on Linux Using Terminal
Fix Remote Desktop Failed Due to Firewall Settings
BitLocker Paused After Update Troubleshooting
Troubleshoot Windows Defender Permission Error