Fix Microsoft 365 Error ‘PST Import Stuck on Analysis in Progress’

Published On - May 7, 2024 by Nasir Khan | Reading Time: 6 minutes

Are you a victim of the rage that occurs when a smooth functioning process becomes stalled in the middle? An error message such as ‘PST Import Stuck on Analysis in progress’ often causes great aggravation and ire in users when trying to upload PST files. While there may be a straightforward fix for errors like these, there are instances when using automated solutions like Regain Office 365 Migrator is vital.

You can use Drive Shipping or Network Upload in Microsoft 365 to import Outlook data files (PST) into users’ mailboxes. These solutions require the creation of a CSV mapping file, a PST import task, and the uploading of PST data to cloud storage, all of which are time-consuming and complicated processes. You may occasionally run into several difficulties and problems when importing PST files into Microsoft 365. Now, let’s explore the reasons that caused the error ‘PST Import Stuck on Analysis in Progress’ in Microsoft 365.

Causes of Office 365 Issue ‘PST Import Stuck on Analysis in Progress’

There are several reasons for Outlook PST imports to be stuck on analysis in progress. However, this can be caused mainly by Outlook issues related to large PST files. Some other prominent reasons for the error message ‘PST import stuck on analysis in progress’ are mentioned below.

  • Large PST File Size: If the PST file is exceptionally large, the analysis process could take an extended period.
  • Complexity of PST Contents: Additionally, if the PST file contains a complex structure or a large number of emails, contacts, calendars, or other data types, the analysis process might get stuck.
  • System Resources: Furthermore, fewer hardware resources can result in PST import stuck on analysis progress.
  • Outlook PST not Compatible: In many cases, when Outlook PST file is not compatible it can cause the process to get delayed.
  • Network Issues: Sometimes a simple network issue can cause the PST import to get stuck.
  • Corrupt PST File: If the PST file is corrupt or damaged, the analysis process might encounter errors or difficulties, leading to a prolonged or stuck state.

Now, let’s discuss the approaches to fix the error ‘PST Import Stuck on Analysis in progress’.

Easy Fixes to Repair PST Import Stuck on Analysis in Progress in Microsoft 365

There are many fixes to resolve the error PST Import Stuck on Analysis in progress. Users can also increase the size limit of PST and OST files to resolve the issue. Without any delay let’s explore the fixes to resolve this issue.

Fix 1: Initiate the PST Import Process Again

Since the beginning of time, it has been observed that a simple restart can resolve most issues. Before executing any significant procedures, we consistently recommend users attempt the simplest fixes. Hence, users ought to halt the ongoing process and commence it once more. This action might rectify the error ‘PST import stuck on analysis in progress’ in Microsoft 365. Additionally, fixing and repairing the oversized PST files can increase the speed of the PST import process.

Fix 2: Recheck the Internet Connection

In this modern era, the internet is one of the most crucial elements for performing any online task. Even a minor disconnection of the system from the internet can result in the PST import process becoming stuck. Furthermore, users must ensure that all connections are proper and that there is a constant internet connection to the system.

Fix 3: Decrypt the PST Files

PST files that are password-protected or encrypted cannot be imported into Microsoft 365 or Exchange Online. Make sure that PST files are not encrypted with a password. To check and erase passwords from PST files, use the following actions:

  1. Firstly, check to see if Outlook asks for the password when you open the PST file.
  2. Additionally, to access the PST file, provide the right password when requested.
  3. Furthermore, to open the Import Export wizard, navigate to File > Open & Export > Import/Export.
  4. Select the Export to a file option and then click Next.
  5. Furthermore, choose the option Outlook Data File (.pst) and then click Next.
  6. Select all the folders and then click Next.
  7. After choosing a save location by clicking Browse, click Finish.

After following the steps the PST file will be decrypted. Additionally, do not enter the password again if you are prompted again.

Fix 4: Allow Necessary Admin Permissions

For any process to operate smoothly, it is necessary to grant all the required admin permissions. Additionally, IT experts recommend using the Global Administrator account for a hassle-free PST import job. The following are the steps to grant mailbox permissions:

  1. Firstly, access the Microsoft Exchange Online platform and sign in to the Admin Center panel.
  2. Furthermore, click on the option Roles > Admin Roles. Resolve Error 'PST Import Stuck on Analysis in Progress'
  3. Select the Import Export role and follow the on-screen instructions to allocate the requisite permissions to the global administrator account.

After performing the steps above start the PST Import process again to resolve the issue ‘PST Import Stuck on Analysis in progress’.

Fix 5: Divide Large PST Files into Smaller PST Files

It has been observed that processing one very large file takes considerably more time compared to handling smaller segments of the same file. Similarly, large PST files can disrupt the PST import process. Therefore, to resolve the Microsoft 365 error ‘PST import stuck on analysis in progress,’ it is advisable to reduce the PST file size to less than 10 GB. If any file exceeds 10 GB, it is recommended to split the PST file.

Fix 6: Utilize the ScanPST.exe to Repair Corrupt PST Files

Corrupted or damaged files invariably pose an unexplained hindrance during any process. IT experts always recommend scanning and repairing the PST files. Additionally, Microsoft provides a built-in tool called ScanPST.exe for repairing corrupted PST files. Follow the steps below to utilize ScanPST.exe:

  1. Launch the ScanPST.exe application located within the Microsoft Office installation directory.
  2. Opt for Browse and designate the PST file.
  3. Click Start, then Scan.
  4. Once the scan finishes, choose Repair.

Fix 7: Outlook PST Recovery Tool to Fix Damaged PST Files

Repairing damaged PST files through manual methods can be very tricky and may lead to data loss. Therefore, we recommend using the automated Regain Outlook PST Recovery Tool to repair Outlook PST files. This tool efficiently repairs and recovers damaged OST files. Additionally, utilize this tool to convert PST to VCF, MBOX, EML, MSG, etc. The steps to repair the corrupted PST file using the tool are as follows:

  1. Install and run the Regain Outlook PST Recovery Tool with administrative privileges.
  2. Scan and add the PST files to the software wizard.
  3. Additionally, this software shows an Advanced Preview panel to view the PST files.
  4. Choose a desired Destination Path.
  5. Finally, click on the Save Now button to initiate the repair process.

Fix 8: Unable to Fix ‘PST Import Stuck on Analysis in Progress’ Error in Office 365?

Sometimes, despite our best efforts, we may be unable to resolve an issue. In such cases, it’s advisable to alter our approach to find the optimal solution. Furthermore, utilize the Regain PST to Office 365 Migration Tool for professional migration of PST files to Office 365. Employ this tool to add multiple PST files and migrate them to the desired Office 365 mailbox. Additionally, this tool preserves the folder hierarchy and ensures accurate migration of all PST files. The steps to import PST to Office 365 are as follows:

  1. Install and run the PST to Office 365 Migration Tool as an administrator.
  2. Browse and add the Desired PST Files to the software wizard.
  3. Select Office 365 and enter the Credentials. Then click on Connect.
  4. The import process will automatically start.


It’s time to conclude this comprehensive article addressing the resolution of Microsoft 365 Error ‘PST Import Stuck on Analysis in Progress’. Many users, including IT experts, recommend avoiding manual methods to address the issue of the PST import process getting stuck. Furthermore, we’ve delved into the reasons behind the error and provided solutions to resolve it. All the fixes outlined in the article have been tested and verified. We trust that after reading this article, you can select the most suitable solution according to your requirements.

Frequently Asked Questions

Ques1: Where can I locate ScanPST.exe on my system?

Ans1: The location of the ScanPST.exe tool can vary depending on your version of Microsoft Outlook and your operating system. Typically, it is located in a folder similar to the following:

For Outlook 2019, Outlook 2016, and Outlook 2013:

  • 32-bit Windows: C:\Program Files (x86)\Microsoft Office\root\OfficeXX
  • 64-bit Windows: C:\Program Files\Microsoft Office\root\OfficeXX

For Outlook 2010:

  • 32-bit Windows: C:\Program Files (x86)\Microsoft Office\Office14
  • 64-bit Windows: C:\Program Files\Microsoft Office\Office14

Replace “XX” with the version number of your Microsoft Office installation (e.g., 16 for Office 2016). If you’re unable to find ScanPST.exe in these locations, you can also try searching for it using the Windows search feature. Just type “ScanPST.exe” in the search bar, and Windows should locate it for you.

Ques2: What is a better tool to repair a corrupted PST file?

Ans2: There are two methods to repair corrupted PST files. Firstly, you can utilize the built-in ScanPST.exe tool. Additionally, it is recommended to employ the Regain PST Recovery tool for effective repair of PST files.

Author: Nasir Khan

I am Nasir Khan from India, working as a Content Developer in Regain Software. Here I am writing about our products and their updates. And writing some free solutions from converting emails or Cloud Migration process. We have tools like Email Converter, Emails backup and Cloud migration.

Leave a Reply

Your email address will not be published. Required fields are marked *