Fix: eDiscovery Export Tool Not Working in Microsoft Office 365

Anisha Rawat
Anisha Rawat | Updated On - 12 Sep 2022 |

Read time: 6 minutes

“I am in the middle of exporting my Microsoft 365 mailbox to the PST format using the Microsoft eDiscovery Export tool. The process began smoothly, but somewhere in the middle, it stopped working suddenly. There were no interruptions in between, but it is stuck for quite a while now.”

Microsoft 365 is known worldwide due to the abundant features it provides its users. One of them is the eDiscovery Export Tool which is used by many individuals to find and export different mailbox items. But recently, some issues regarding this tool have been on the rise. Recently there have been multiple complaints about it getting stuck, hanging, or crashing in between the export process. Since data unavailability can cause a long halt in the day-to-day functioning of any organization, there is a certain amount of urgency to resolve this problem. If you are also looking for solutions to the Microsoft Office 365 eDiscovery Export tool not working, this article will be your ultimate guide.

eDiscovery Export tool in Microsoft 365

eDiscovery refers to the process of identifying any specific electronic media content in a platform and delivering it for further use.

In this context, eDiscovery Export Tool is installed and used to search for any content in Exchange Online, Microsoft 365 Groups, Microsoft Teams, OneDrive, SharePoint, etc. These items are further exported into a PST file format. Individuals have understood why is Office 365 Backup critical and often use this workaround approach to take backup of some of their mailbox items and save them in PST format.

Causes behind the eDiscovery Export tool issues

The functionality of the eDiscovery Export tool is not as simple as it seems on the surface. You need to understand some best data backup strategies for enterprises to use it. Often multiple causes lead to the problem where the eDiscovery tool is not working properly, and hence it is critical for you to know the reasons which are causing this-

  • Using an outdated version of the Windows operating system
  • Using Internet Explorer 9.0 or later, which does not have the installation of Microsoft .NET Framework 4.5 or later versions
  • An oversized Office 365 mailbox is being exported
  • The local intranet zone settings in Internet Explorer are not configured correctly
  • Using a third-party browser where the extension ClickOnce has not been installed
  • Currently using an outgoing proxy server where the connection times out
  • Corrupted contents of the mailbox

Solutions for eDiscovery tool not working

You can resolve the issue of the eDiscovery feature hanging, getting stuck, or crashing by relying on these methods-

  1. Upgrade the Windows OS
    A simple solution is to upgrade your Windows operating system to its latest version, like Windows 10 or 11. An update is conducted to get all the latest improvements and to stay protected by enhancing all the security features. A quick upgrade has the potential even to resolve the issues with eDiscovery.
  2. Install .NET Framework 4.5
    If you are using Internet Explorer 9.0 or later versions, you also need to install .NET Framework 4.5 or later. It has various additional enhancements.
  3. Correctly configure the intranet zone settings
    While working on Internet Explorer, all the local intranet zone settings must be configured correctly. This might resolve the eDiscovery tool hanging issues that you are facing. You also need to add https://* to it, and that can be done using the steps given below-

    • Open the Internet Explorer.
    • Select Settings on the top right corner and click on Internet on Internet options
    • Move to the Security tab and click on Local on Local Intranet
    • Now, select Sites.
      Select Sites
    • The Local intranet window will open, and click on Advanced.Click on Advanced
    • Add this – https://* and click on on Close
  4. Install ClickOnce extension
    If you are using a third-party browser, a non-Microsoft one, then, in that case, you need to install the ClickOnce extension. It allows the users to create a self-updating Windows-based application that can run with the bare minimal user interface. You can install it from the add-ons or web store.

A better solution for Office365 backup

Any manual method for Office 365 backup does involve a slight risk of data loss. eDiscovery tool also brings such difficulties, and no user wants to compromise with their important data. This is the prime reason behind experts recommending professional tools for taking backup.

Kernel Office 365 Backup is a utility that is designed carefully to take backups of all kinds of mailboxes irrespective of their size. It saves Office 365 data in the format preferred by the individual. The advanced filters enable users to save specific items as well. The backup procedure is quite straightforward and can be easily conducted by a beginner as well.

Office 365 Backup


Microsoft eDiscovery Export tool’s basic function is to find specific items from the mailbox and later export them in a PST format. Users often use this to take backups of their mailboxes. But this utility also has the tendency to hang or crash in between. This is not at all efficient since confidential data is involved. This issue is a consequence of a mix of reasons. You can refer to the solutions given above to solve its not working problem. However, it is better to opt for a reliable, professional utility for future needs related to the backup Exchange Online mailboxes to PST.