Know how to fix “An error has occurred…” appeared while using Scanpst tool

In Outlook, there are many circumstances where you can face several kinds of errors due to PST file corruption due to which you are not allowed to access the files further. In that situation, Outlook recommends to use Scanpst tool that allows you to repair the damaged files but to a certain extent. Sometimes, it can gives error messages such as scanpst error occurred leaving the repair process in the middle.

Suppose a situation when you are performing PST repair process using Scanpst tool and instead an error message appears on the screen:

An error has occurred which caused the scan to be stopped. No changes have been made in the scanned file.


An unexpected error prevented access to this file. Use scandisk to check disk for errors and try using the tool again.


The causes behind this error are:

“Scanpst.exe error occurred“error indicates that the scanning process is interrupted in the between due to which you it is not showing any results. The main cause is the oversized PST files i.e. more than 2GB and the scanpst tool is unable to repair the files more than 2GB.


So, first of all you need to reduce the PST file size by following the below steps:

1. Delete the useless items that are of no use

2. Make use of PST crop utility that works to reduce the file size by a specified value. But before using this tool, backup all your data as it deletes the items in order to reduce the size.

3. Perform PST Archivng

But of the above solutions does not work, then you can go for the PST Repair tool that efficiently repairs the damaged Outlook files even in complex cases. So, make a try to use the software in case the inbox repair tool fails to repair the corrupted PST files.

PST Repair Free Download

Software Requirement

Processor : Pentium Class
Operating System : Microsoft Windows 7 / Vista / 2003 / XP / 2000 / NT4 (SP6)
Memory : Minimum 256 MB (512 MB recommended)
Hard Disk : 50 MB of free disk space
MS Outlook : MS Outlook 2010 / 2007 / 2003 / 2002 / 2000
Internet Explorer : Version 5 or later