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Written By
Sachin Prajapati -
Updated on
March 28th, 2026 -
Read Time
6 minutes
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.
There can be several causes why the ScanPST exe may not be responding. Given below are a few of them:
Let us look at the various solutions to fix the ScanPST.exe tool not responding problem.
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.
Try running the tool with administrative privileges to access and modify the PST file and repair it without interruptions.
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.
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.
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.
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.
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.
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.
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.
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