Outlook PST File in Use and Cannot be Accessed? Fix Now

What Does “PST File In-Use Error in Outlook” Mean?

This error appears when Outlook thinks the PST file is already being used by another process or program. Because of this, it blocks access to avoid conflicts or data damage.

Common Reasons Behind This Error

• Sometimes Outlook is already running in the background, even if it is not visible.
• If the system shuts down suddenly, the PST file may not close properly.
• A damaged or corrupted PST file can also cause this error.
• Trying to open the same PST file in different profiles or systems can cause conflict.
• Also, some Outlook add-ins may interfere with normal functioning.

Quick Fixes to Resolve “Outlook PST File is in Use and Cannot be Accessed” Error

If Outlook shows this error, it usually means the PST file is locked by another process or has some internal issue. Start with simple checks first. If the problem continues, use a reliable tool for a quick fix:

Solution 01: Close All Outlook Processes

• First, press Ctrl + Shift + Esc to open Task Manager
• Under the Processes tab, look for Outlook-related tasks like Outlook.exe or similar.
• Then, select each one and click End Task.
• Open Outlook again and check.

Solution 02: Turn Off Cached Exchange Mode

• Close Outlook.
• Go to Control Panel > Mail > Email Accounts.
• Select your account and click Change.
• Uncheck Use Cached Exchange Mode.
• Click Next, then Finish. Restart Outlook.

Solution 03: Start Outlook in Safe Mode to Fix Outlook PST Could not be Accessed Error

This helps identify if add-ins are causing the issue.

• Firstly, press Windows + R, type outlook.exe /safe, and press Enter.
• If Outlook opens without error, an add-in is the cause.
• After that, go to File > Options > Add-ins.
• Select COM Add-ins and click Go.
• Next, disable all add-ins and restart Outlook.
• Enable them one by one to find the faulty one.

Solution 04: Repair PST File Using ScanPST

This method works for minor issues, but it may not fix heavily damaged files.

• Find Scanpst.exe on your system.
• Now, open it and select your PST file.
• Click Start to scan the file.
• If errors are found, click Repair.
• Open Outlook again.

Solution 05: Best Method to Fix Outlook PST File is in Use and Cannot be Accessed

If the Outlook PST file is badly corrupted and keeps showing this error, using a professional DRS PST Repair Tool is the best option. It offers several recovery modes, like Standard, Advanced, or Deep, to repair your PST files without any hassle. You can also preview all your recovered PST files before saving them. This tool preserves the original email formatting, structure, and metadata during the recovery process. Highly compatible with all Windows and Mac versions. A free version of this tool to understand its features and functions. You can also fix Outlook sending error 0x80040201 and more.

Simple Steps to Fix Corrupted Outlook PST Files

1. Download and install the DRS Outlook PST File Repair Tool.
2. Click on Open to add your corrupted or damaged PST files.
3. Choose Recovery Modes and other options. Click OK.
4. Then, preview all recovered PST files and click Save.
5. Lastly, choose the Saving Format from the given options.

Tips to Prevent This Error in the Future

• Always exit Outlook normally instead of closing it abruptly.
• Avoid turning off your system while Outlook is still running.
• Create regular backups of your PST files to prevent data loss.
• Store PST files on your local system instead of network locations.
• Additionally, keep Outlook updated with the latest patches and updates.

Conclusion

The “Outlook PST file is in use and cannot be accessed” error can be hectic, but it is not permanent. With the right steps, you can fix it easily. Start with simple solutions like closing background processes or restarting your system. If the PST file is corrupted, use the professional tool. It repairs your Outlook PST files without any data loss. Additionally, technical support is also available to help resolve any issues if required.

Frequently Asked Questions