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User Query: I have downloaded Microsoft’s PST Collection Tool to import my PST files to Office 365, but it is not working. Why does my PST Collection Tool fail during the import, and how can I fix the PST Collection Tool not responding error? Also, is there any additional way to import my PST files to Office 365?
Many IT administrators and admins mainly depend on the PST Collection Tool to search, collect, and upload important Outlook data files to Microsoft 365. But sometimes they face errors, including failed import processes, stuck processes, missing PST files, or sudden crashes during migration.
If you are also experiencing the PST Collection Tool not working issue, then this article will help you understand the tool, real causes behind PST Collection Tool not responding, and the best ways to fix them. At last, we will also discuss an advanced Import PST to Office 365 tool to overcome the limitations of the PST Collection Tool.
What is PST Collection Tool?
The Microsoft PST Collection Tool allows administrators to locate PST files across systems and move them to Office 365. Some of the main functionalities of PST Collection Tool are as follows:
- Search for PST files in network systems
- Collect Outlook PST data
- Import PST files to Office 365
- Reduce unmanaged PST storage
- Help admins to centralize mailbox data
With these multiple features, the tool becomes the prime choice for every business to import its data. However, even after Microsoft’s continuous support, the tool fails to do large-database migrations.
PST Collection Tool Not Responding – How to Identify the Issue?
Check out the symptoms below that stops PST Collection Tool’s functioning:
- The tool fails to import PST to Office 365.
- Migration stops midway without any prior reason.
- PST Collection Tool freezes during PST scan.
- PST Collection Tool shows a ‘Not Responding’ message.
- The tool cannot find PST files from your system.
- Outlook PST files become inaccessible after import.
These issues usually appear because of configuration errors, corrupted PST files, unsupported formats, or system limitations.
Main Causes and Solutions for the PST Collection Tool Not Working Issue
Check out all the prime causes and their solutions to fix PST Collection Tool not working.
Cause 1: Corrupted PST Files
One of the biggest reasons behind the software failure is PST corruption. When your Outlook PST file gets corrupted due to improper shutdown or other reasons, the PST Collection Tool fails to import your files to Office 365. So, in that scenario, it becomes important to repair corrupt PST files. Here’s what you can do:
- Run ScanPST.exe to remove corruption from files.
- Make sure to backup PST files, so that you have access to data, even after corruption.
- Avoid network-based PST storage and split oversized PST
Cause 2: ANSI PST Format Issues
Older Outlook versions create ANSI PST files. The PST Collection Tool often struggles with these files because they use outdated structure limits. First, try to convert your ANSI PST to Unicode PST and then again execute the import process to check whether the software starts working or not.
Note: Microsoft migration utilities work better with the Unicode PST format.
Cause 3: Oversized PST Files
A large PST file can create performance problems during collection or upload. If your PST file is too large, then it will slow down your process, pop-ups timeout message, freeze the PST collection Tool, and show errors.
Solution to overcome Oversized PST file issues
- Create a new Outlook profile and move unnecessary emails to it.
- Remove duplicate emails and attachments.
- Archive old mailbox data to manage large dataset.
- Split a large PST into smaller files for easy management.
Cause 4: Incorrect Network Permissions
The tool requires proper administrative access to locate PST files across systems. You cannot initiate the import process without the correct permissions and face issues, such as PST discovery fails, the scan process remains incomplete, and the import process cannot access your data. Make sure to follow these necessary steps:
- Run the tool as Administrator in your system.
- Verify all the shared folder permissions.
- Allow access through firewall settings.
- Check Office 365 admin permissions.
Cause 5: Office 365 Authentication Problems
Many users connect the tool with Microsoft 365 accounts, but incorrect credentials or MFA conflicts may block the migration process. Overcome Office 365 Authentication problems with:
- Verify admin account details of your Office 365 account.
- Use modern authentication methods for a successful process.
- Reconnect Office 365 account in the PST Collection Tool.
- Confirm mailbox license activation before import process.
Cause 6: Damaged Installation Files
Sometimes, the Microsoft PST Collection Tool installation itself becomes damaged because of random crashes, missing components, and other reasons. It will abruptly stop you from launching the tool. To fix damaged Microsoft PST Collection Tool, make sure to:
- Uninstall the application completely from your system.
- Restart your system and wait until all software loads.
- Download Microsoft PST Collection Tool from original website and install it.
- Install the required .NET Framework components.
Cause 7: PST File Location Problems
The tool may fail if PST files remain stored in unsupported or restricted locations, such as external drives, network drives, OneDrive synced folders, and corrupted storage sectors.
Note: Microsoft utilities often struggle with inaccessible file paths.
Things to remember before selecting PST files
- Copy PST files from unauthorized drives and place them locally.
- Avoid cloud-sync folders while scanning PST files in the tool.
- Verify disk health and make sure you have enough storage.
- Check file path length and do not store PST in multiple sub-folders.
PST Collection Tool Not Working – What to do Next?
If you are continuously experiencing the PST Collection Tool not responding error, and making it difficult for you to import your files to Office 365, then the best option is to use an automated solution. Many IT administrators recommend Kernel Import PST to Office 365 as a secure and easiest way to upload your Outlook data files directly to Microsoft 365 mailboxes.
The tool stands out during the import process because of its robust functionalities and easy-to-use interface. Some of its prime features are:
- Import PST files to Office 365 in bulk with high data accuracy.
- Preserve folder hierarchy and mailbox structure in O365 account.
- Support large PST files without any size limitations.
- Offers a mapping window to sync PST mailboxes with O365 user accounts.
- Multiple filters for selective PST data import in Office 365.
Final Words
I hope you find this blog helpful in understanding the causes behind the PST collection Tool not working issue. Follow the above-discussed solutions step-by-step to fix it and import your data.
However, my personal recommendation is that if you are facing the PST Collection Tool not responding issue, use tool to easily import your PST files to the Microsoft 365 environment without any hassle and limitations.
