How to fix Scanpst fatal error 80040806

In case of PST file corruption issues, Outlook provides you Scanpst.exe inbuilt inbox repair tool to resolve up the corruption problems. This utility carries out the repair process by analyzing the associated file structure. But there are certain circumstances where Scanpst fails to repair corrupt PST files and direct you to error 80040806 and similar ones.

Consider a situation where you are using Scanpst tool to repair the damaged PST files but in the middle the repair process stops followed with the below error message:

Fatal Error: 80040806, dwErr=0

Along with the error message, messages similar to this also appear on the screen:

Attempting to fix original file

Attempting to copy back BBT

Cause:

There can be various reasons responsible behind outlook error 80040806 which are mentioned below:

• Due to improper installation of Outlook
• When the PST files exceeds its file size limit i.e. 2 GB
• Another reason can be severe PST corruption issues which are beyond the capability of Inbox repair tool

Solution:

To troubleshoot outlook error 80040806, you can try out the following solutions:

1. Make a fresh installation of Outlook in case of improper installation


2. In case of oversized PST issues, you need to reduce the file size and for this PST crop utility is the best option which works to truncate the size by a specified value. But the limitation with this tool is that it can delete some of your important data while reducing size. So, instead of crop utility, you can also use Split PST tool that divides outlook files on the basis of date, folders, email Id etc.


3. But if any of the above solutions do not help you, then the best possible option is to use PST Repair tool that repairs corrupt Outlook files easily and completely without facing any Scanpst.exe errors and thus you get rid of scanpst fatal error 80040806.