How to Fix Unknown Error 0x8004060C in Microsoft Outlook

The article intends to help users know what the error unknown 0x8004060C is in Microsoft Outlook and how to fix it using simple methods. The methods described here are simple and correct until date. It is still recommended that users follow the instructions accurately to get the desired problem fixed without running into common Microsoft Outlook problems and eventually contacting Microsoft technical support services.

Are you unable to send or receive emails in Microsoft Outlook 2002? Are you looking for a permanent solution to fix the error message ‘Task ‘Microsoft Exchange Server – Receiving’ reported error (0x8004060C): ‘Unknown Error 0x8004060C’? If yes, then the article is for you. Unknown 0x8004060C is one of the common errors in Outlook 2002 that occurs when the size of overall.pst file reaches beyond its capacity (2GB). Outlook then stops communicating to the server in order to prevent the existing files from being corrupted. Now that you have understood why the problem occurs, let’s get started to fix the problem.


Open Outlook, right click on the Deleted Items folder, and select the Empty Deleted Items Folder. If prompted for a confirmation, click on the Yes button. It is must to empty the folder as unnecessary mails will only contribute to the clutter in your mailbox and thence create problems like these.

Other than the Deleted Items folder, delete all the unwanted, unnecessary mails or attachments (that you no longer need) from your mailbox due to the reason well explained above.

Reduce the size of the.pst file by compacting it. This will fix the problem only for the time until more emails come in and the file size exceeds its limit again. Therefore, it’s a temp solution but must be performed.

Create a new.pst file and then split your Outlook data into it. This will be the easiest solution to perform and save your Outlook data.

If the problem continues, then download a.pst split software from a trusted website. You can choose from various free or paid.pst split software versions as per your convenience. Save the file to your preferred location where it is easily accessible from. When done, locate the file, double click on it and run. Wait until the process finishes and splits your Outlook data into several small.pst files.

The best solution is to upgrade your Windows XP Service Pack (SP) through Microsoft or Windows Updates or visit Microsoft’s website to obtain the latest SP. This will remove the flaw of 2GB size limit and enable you to continue enjoy sending or receiving emails in Outlook.

Additional Tips:

Set Windows Updates to download the latest updates automatically. This will save you from the pain of remembering and downloading the updates manually.

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