ScanPST Not Working? Fix Outlook Inbox Repair Tool Issues

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  • Updated on
    March 28th, 2026
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    6 minutes
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Summary: The Inbox Repair Tool, the ScanPST.exe stops working properly if the Outlook data file gets too big. While the modern Outlook versions handle file sizes of up to 50 GB. But the ScanPST.exe tool can only handle file sizes up to 2 GB. Read the technical article till the end to understand why the Inbox Repair Tool isn’t working. Along with that, we’ll implement solutions for the error ScanPST not working fix it manually or by using a professional tool, the Outlook PST Repair Tool. Now, let’s begin the article.

Why ScanPST exe Not Responding?

There can be several causes why the ScanPST exe may not be responding. Given below are a few of them:

  • The tool can become unresponsive if the PST file exceeds the typical size limits or gets corrupted.
  • If there is limited RAM or CPU availability, it can cause ScanPST to stop responding.
  • Running ScanPST on a PST file stored locally can slow down or interrupt the repair processes.
  • Also, if the disk is damaged, such as having bad sectors, it may lead to interruptions in ScanPST operations.
  • The insufficient privileges can stop ScanPST from accessing the PST file.

ScanPST Not Working Fix Outlook Inbox Repair Tool Issues

Let us look at the various solutions to fix the ScanPST.exe tool not responding problem. 

Solution 01: Move the PST File to a Local Drive

Moving the PST file to a local system drive ensures quick access to the data. It will also allow the repair process to complete without any interruptions.

The following are the steps to fix scanpst not responding:

  1. Open the MS Outlook application.
  2. Then, go to File > Account Settings > Data Files.
  3. After that, note down the location of the PST data file.
  4. Now, head to the file location and right-click the PST file and choose to Copy it.
  5. Next, go to a local directory and paste the copied PST file.
  6. Launch ScanPST.exe, select the desired PST file, and start the scanning process.

Solution 02: Run ScanPST as Administrator

Try running the tool with administrative privileges to access and modify the PST file and repair it without interruptions.

If the Scanpst.exe does not work, follow these steps:

  1. First, go to the installation directory of MS Outlook.
  2. Then, right-click on ScanPST.exe and select Run as Administrator.
  3. Now, navigate to the Browse button and select the desired PST file.
  4. After that, hit the Start button to start the scanning process.
  5. If the errors are found, click on the Repair button.

Solution 03: Reduce the Size of the PST File 

By reducing the file size of the PST file, users can improve the performance and increase the chances of the repair process. When the file size increases, the scanning process becomes complex.

Follow the step-by-step process to fix failure of scanpst.exe error:

  1. Open the Microsoft Outlook application on your system.
  2. Then, head to File > Account Settings > Data Files and choose the PST file.
  3. After that, click on Settings > Advanced > Outlook Data File Settings.
  4. Next, press Compact Now. Then, again, go to File > Info > Tools > Clean up Old Items.
  5. Save the archived data to a PST file. Also, empty the Deleted Items folder.
  6. Finally, launch the ScanPST.exe tool and repair the file.

ScanPST Not Working Fix It Using a Dedicated Tool

The Outlook PST Repair Tool is an advanced and comprehensive approach to repairing corrupt PST files. It ensures reliable recovery of damaged PST files while preserving complete mailbox integrity. Encrypting Outlook PST file, this software retrieves all the Outlook data items, supports unlimited PST file sizes, and exports recovered data into multiple file formats. Advanced features include a preview feature, date-based filtering, and multiple repair modes. Additionally, it ensures accurate and efficient recovery across all Outlook and Windows versions. 

Simple steps to fix the failure of scanpst.exe error:

  1. Download and run the tool on your local system. 
  2. Afterwards, upload the PST File that is damaged, and you wish to repair.
  3. Next, select the PST Recovery Mode. It depends on the level of corruption, such as Standard, Advanced, or Deep.
  4. Here, users can preview all the targeted emails after the scanning process of a PST file.
  5. Now, select the PST as a File Format and set the destination path to download it.
  6. Lastly, click the Save Button.

Conclusion

When you experience the Microsoft Outlook Inbox Repair Tool not responding issue, try using the methods mentioned above. Use the method that is best suited to your situation, while ScanPST not working fix it. But keep in mind that the free Inbox Repair Tool typically resolves only minor problems and small PST files. If you need to recover an entire PST file from damage without any limitations, we recommend using Outlook PST Repair Tool.

Frequently Asked Questions

Q1. Why is ScanPST not working on my computer?

Ans. ScanPST.exe may not be working due to a large or corrupted PST file, insufficient system resources, or permission issues. It can also fail if the file is stored on a network drive, affected by disk errors, or conflicting with Microsoft Outlook processes running in the background.

Q2. Where is the ScanPST tool located?

Ans. ScanPST.exe is usually located in the Microsoft Office installation folder, such as C:\Program Files\Microsoft Office\root\OfficeXX\ or C:\Program Files (x86)\Microsoft Office\root\OfficeXX\. Its exact path may vary depending on your Microsoft Outlook version and whether you’re using a 32-bit or 64-bit installation.

Q3. Why does ScanPST keep crashing or freezing?

Ans. ScanPST.exe may crash or freeze due to large or severely corrupted PST files, insufficient system resources, or disk-related errors. It can also occur if the file is on a network drive, there are permission issues, or Microsoft Outlook is running in the background.

Q4. Why is ScanPST not working on Windows 11?

Ans. ScanPST.exe may not work on Windows 11 due to permission restrictions, compatibility issues, or insufficient system resources. It can also fail if the PST file is large or corrupted, or if Microsoft Outlook processes are running in the background.

About The Author

Sachin Prajapati is an experienced technical content writer with a passion for simplifying complex topics. Specializing in email and cloud migration solutions, he crafts informative and reader-friendly content that empowers users to understand and manage their digital tools more effectively. His insights have been featured on several respected tech platforms, earning the trust of a wide audience.

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