Fix 0x80040154
Class not registered (missing COM registration).
Try the fastest fix for 0x80040154
If you want to avoid working through manual repair steps first, you can start with an automated scan. It can check for corrupted system files, broken services, and other missing windows file issues commonly tied to error 0x80040154.
Manual fixes are listed below if you prefer to troubleshoot it yourself first.
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What it means
Windows or an app is calling a COM component that isn’t properly registered or is missing.
Try this first
- Restart your PC and retry the app/action.
- Repair or reinstall the affected app.
- Run Windows Update to restore missing components.
Want to skip the more advanced repair steps?
The next steps may involve deeper troubleshooting, system repair commands, or repeated testing. If you want to try a faster automated option before continuing, run a scan for 0x80040154 first.
Good option if you would rather avoid command-line work and longer manual troubleshooting.
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Advanced steps
- Run DISM + SFC.
- Repair Microsoft Office if the error is Office-related.
- Test in a new Windows user profile.
Other System file and component Errors You May Also Need to Fix
Windows problems often come in clusters. These related guides may help you troubleshoot nearby issues faster if the same problem appears again.
Repair Windows Components
If core Windows components are damaged, repairing system files is the safest next step.
Run these commands:
Restart your PC and try again.
Related Windows Errors
If you’re seeing multiple errors, these related guides may also help:
If the Error Still Persists
If app registrations are badly damaged, you may also need to repair or reinstall the affected software.
An automated repair tool can scan for common Windows issues and repair them automatically.
Best if you want to try a faster repair path before spending more time on manual fixes.
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Frequently Asked Questions
What causes error 0x80040154?
This error usually occurs when a required Windows component, service, or system file is not working correctly. It may be caused by corrupted system files, disabled services, failed updates, or software conflicts.
Is error 0x80040154 dangerous?
The error itself is not dangerous, but it can prevent Windows features, updates, or applications from working properly. If ignored, it may lead to stability or security issues over time.
Can error 0x80040154 be fixed without reinstalling Windows?
Yes. In most cases, this error can be resolved using troubleshooting steps such as repairing system files, enabling required services, or using automated repair tools, without needing to reinstall Windows.