How to Fix 0X8004060C Error in Outlook

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Introduction

Error 0x8004060C in Outlook typically occurs due to the Outlook data file (PST or OST) reaching its maximum size or becoming corrupt.
To resolve this error, you can try several methods such as emptying the Deleted Items folder, compacting the data file, cleaning up the mailbox, archiving old emails, and repairing the PST file.
If these manual methods do not work, you may need to use specialized software tools to repair the corrupt data files.

Storage-related Issues: The most common cause is the Outlook data file reaching its maximum size limit.
Server Outage: Issues with the Exchange or Outlook server can also trigger this error.
Synchronization Problems: Sync issues between Outlook and the backend server can lead to this error.
Corrupt Files: Corruption in the PST or OST files can cause the error.
Other Issues: Malware infections, outdated applications, or Third-party add-ins can also be responsible.

Empty Deleted Items Folder: Regularly empty the Deleted Items folder to free up space.
Compact Data File: Compact the PST or OST file to remove white space and reduce file size.
Clean Up Mailbox: Use the Mailbox Cleanup tool to find and delete large emails.
Archive Emails: Move old emails to an archive to reduce the size of the main data file.
Recreate OST File: Delete and recreate the OST file if it is damaged.

Inbox Repair Tool (ScanPST.exe): Use this built-in tool to repair corrupt PST files.
Stellar Repair for Outlook: A third-party tool that can repair severely corrupt PST files.
Wondershare Repairit for Email: Another third-party tool that can fix corrupt PST and OST files.

Avoid Redundancy: Regularly check for and remove duplicate PST files.
Scan Servers Frequently: Use reliable Anti-malware tools to scan your system and servers.
Install Reliable Add-ins: Only use add-ins from trusted publishers.
Keep Outlook Updated: Ensure that your Outlook and Office Suite are always up to date.
Monitor Mailbox Size: Regularly check and manage the size of your mailbox to prevent it from reaching its limit.