The Operation Failed. An Object Cannot Be Found – Solved
Outlook error 0x80040154 typically appears the message “Class Not Registered”. This means Outlook is trying to use a required system component, often a Windows DLL, COM class or Outlook-related library but cannot find or load it correctly.
In simple terms, Outlook depends on several background files to send emails, receive messages, sync accounts and manage data. If one of these components is missing, unregistered, corrupted PST file, or not properly linked to Outlook, this error appears.
Most Error Encounter This Issue When
- A DLL file such as inetcomm.dll becomes unregistered.
- An Outlook Add-ins is incompatible with the installed Office Version.
- Microsoft Office or Windows updates are incompatible or corrupted.
- There is a mismatch between 32-bit and 64-bit Outlook installations.
- The Outlook installation itself became corrupted.
Why Does Outlook Error 0x80040154 Matters?
- Outlook not sending or receiving new messages.
- Sync failures across POP/IMAP/Exchange accounts.
- Crashes or Outlook refusing to open.
- Add-ins failing to load.
- Difficulty accessing existing email data.
- Due to damaged Outlook data files partial data inaccessibility, interrupted email synchronization, or possible corruption if Outlook is repeatedly forced to reopen.
Step-by-Step Fixes for Outlook Error 0x80040154
Method 1. Re-register the Missing/Unregistered DLL Files
- Close Outlook completely.
- Press Win+R and type CMD and run as administrator.
- In a command prompt, type: regsvr32 inetcomm.dll
- Press Enter to see the success message.
- Relaunch Outlook to fix the error.
Method 2. Start Outlook in Safe Mode & Disable Faulty Add-ins
- Press Win+R and type Outlook.exe/safe and click on OK.
- If Outlook opens successfully, navigate to file and click on Options.
- Hit on Add-ins and click GO under Manage COM Add-ins.
- Uncheck all faulty Add-ins and relaunch Outlook normally.
Method 3. Repair or Rebuild Corrupted PST File
- Close Outlook completely.
- Locate path: C:\Program Files\Microsoft Office\root\Office16\ScanPST.exe
- Select Outlook files and click on Repair.
Method 4. Repair or Reinstall Microsoft Office/Outlook
- Open Control Panel and click on Program and features.
- Select Microsoft Office and hit on Change.
- Choose Quick Repair.
- If the error is not solved, then select Online Repair to reinstall Office components.
- Restart your PC and open Outlook.
Method 5. Scan for Malware / Temporarily Disable Antivirus to Test
- Run a full system malware scan.
- Check Antivirus quarantine for Outlook related DLL.
- Temporary disable antivirus real-time protection.
- Open Outlook to see the error,
- If resolved, add Outlook and Office folders to antivirus exceptions.
Method 6. Create a New Outlook Profile (if profile corruption suspected)
- Open the Control Panel and click on Mail(Microsoft Outlook).
- Hit on Show Profiles and press on Add to create a New Profile.
- Configure your email account with Outlook.
- Set Always use this profile to the new one.
- Open Outlook to verify the error is gone.
Automated Method to Fix Outlook Error 0x80040154?
If it’s not resolved manually then your Outlook files are majorly corrupted. In this situation, you need to opt for the BitRecover PST Repair Tool as this software allows you to restore all your Outlook mailbox data and creates separate resultant files without making any changes with the source Outlook data files. To use this utility, you just need to click on download button and follow the process as described below:
- Install and launch Recommended Software on your system.
- Click on select files to browse Outlook files.
- Now, select the folder as you want in the resultant Outlook files.
- Choose PST as saving options and select split PST, and separate PST per user.
- Browse destination path and click on Repair to get healthy Outlook files.
Benefits to opt Recommended Tool
- This software can easily repair any number of Outlook files at once.
- It is fully reliable for both professional and beginner users.
- It supports dual mode to select multiple Outlook emails or an entire folder of PST files.
- With this wizard, you can also export Outlook emails to PDF, CSV, and many other formats for easier accessibility.
- This tool can also repair and export a specific folder from an Outlook PST file without requiring the entire file.
Common Questions
How to fix high memory consumption in Outlook?
Close unnecessary Add-ins via file and hit on options then select Add-ins. Update Outlook to the latest version and reduce the large PST/OST file size. Restart Outlook, clear cache, and disable unneeded background apps to free system memory and improve performance.
How do I fix Outlook not connecting to the Exchange server?
Check connectivity and verify Outlook is online and verify Exchange credentials. Relaunch Outlook and clear cached credentials and fill current credentials and update Windows/Office. If the issue is not solved, create a new Outlook profile or contact IT Admin to check server availability.
How to fix Outlook error 0x80004005?
Outlook error 0x80004005 often indicates permissions, connectivity or file issues. Run Safe Outlook and disable suspicious add-ins, repair Outlook files and check antivirus/firewall isn’t blocking Outlook. Update Office often fixes this problem.
Conclusion
To fix Outlook error 0x80040154 first you need to backup Outlook data, re-register DLL files, run Outlook in safe mode, repair Outlook data or reinstall Office if needed. Prevent future issues by keeping Outlook and Windows updated, disable suspicious add-ins, maintain clean Outlook profiles or scan for malware regularly to keep Outlook healthy and stay away from this Outlook error 0x80040154.
