How to ward off MS-Outlook Fatal Error 80040806

Corruption of PST file is not a small issue. It is quite normal to get worried when Outlook PST file becomes corrupt. Corrupt PST file leads to number of problems. Data contained in MS-Outlook application remains unapproachable. In such a situation, you need to repair the PST file to re-access your data. Scanpst.exe is a program file that is used to repair corrupt PST file. But due to its limited functionality, the tool sometimes cannot scanpst file for error, and thus cannot repair it. In fact, it gives some errors itself, thus calling for special attention. In such cases, a third party Outlook PST repair tool is highly recommended as it can repair PST file effectively.

Let's discuss an error that appears on the screen due to execution of Inbox Repair tool. In other words, when you use an inbuilt Inbox Repair tool to repair corrupt PST file, you cannot complete the repair process and receive an error message:

Fatal Error: 80040806, dwErr=0

This nasty error blinks at the end of following error log message:

Attempting to copy back BBT
Attempting to fix original file

Cause:
Above error occurs when Inbox Repair tool cannot repair the corruption of PST file. There are some reasons responsible which prevent Inbox Repair tool from repairing corrupt Outlook file as follows:

No proper installation of Inbox Repair tool (Scanpst.exe) is done.
Increased size of PST file also does not allow Inbox repair tool to repair PST file. Inbox repair tool has limited functionality.

Resolution:
To solve this issue you need to:

Reinstall Microsoft Outlook in your system. After reinstallation of MS-Outlook, execute Inbox repair tool again, to repair corrupt PST file.
Use a 2 GB truncation utility that can truncate a PST file which has exceeded, or is about to exceed 2 GB file size. But execution of this tool may lead to deletion of significant data.

If the problem persists, try to solve it using a third-party Outlook PST repair tool. These tools scan PST file, repair and restore it in a few mouse clicks. Results produced by these software are better than other two methods stated above. A well documented manual is embedded in the software which helps you to use the software.

Stellar Phoenix Outlook PST Repair is a trustworthy tool that is used to scan PST file and recover Outlook PST data irrespective of the kind of problems. The tool repairs PST file and restores it as a new PST file. Additionally, it generates a different profile for each PST file. The tool is compatible with Windows 7, XP, Vista, 2000, 2003, NT4(SP6). MS Outlook 2003, 2002 (XP), 2000, 2007, and 2010 are supported by this software.