Solved – Outlook Error 0x80040154 – Microsoft Outlook Unknown Error Code

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  • Published on
    May 26th, 2020
  • Updated on
    June 21, 2021
  • Read Time
    2 minutes
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MS Outlook Error 0x80040154 is a send/receive error that occurs when we try to download or receive an email and attachment from Outlook on Windows PC. This Outlook unknown error code 0x80040154 is the most common error as it occurs due to PST file corruption. Whenever a user tries to send an email message to someone via MS Outlook, then ‘An unknown error has occurred, error code: 0x80040154 in Outlook’ message appears. This stops the user from sending any email message. 

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Common Reasons for MS Outlook Error 0x80040154

Either the Windows Registry file is corrupted, or some of the files are unregistered. This error occurs widely in Outlook 2003, 2007, 2010. The root cause of this error on PST could be inetcomn.dll. If MS Outlook system deletes or loses this DLL file, then the PST files are unavailable. 

Due to this Outlook unknown error code 0x80040154, the Outlook data files become corrupted. There are a number of factors responsible for this error, and some of them are mentioned below:

  • Unintentional failure or removal of microsoft Outlook inetcomn.dll files
  • Any harmful virus attack on system Outlook 2010/2007/2003
  • Huge PST files can cause errors in the various variants of Outlook
  • Loss in Personal Storage Table files may cause 0x80040154 error
  • An incorrect device setup of your Microsoft Outlook email account
  • Some kind of fraud or illegal MS Outlook profile installation

As you have seen so many reasons for occurrence of such Outlook error in Windows system, it needs to be fixed immediately. So, let’s fix your Windows system. Go through the below info-graphic and find appropriate solutions for this send/receive issue.

Outlook unknown error code 0x80040154


Here we’ve discussed all the reasons and solutions to fix Outlook error 0x80040154. I hope you will be able to fix this issue through some DIYs discussed. As we have mentioned that the issue commonly occurs due to corruption in Outlook data files(PST) and many more reasons as well, so you can simply go for the Outlook PST Repair Tool to fix corruption issues in Outlook PST. This tool immediately repairs corrupted PST files in minimum time without any hassle. 

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