March 3, 2024

Outlook Using an Old Backup Copy of OST Data file

This post will go over the best approaches to fix the “Outlook using an old backup copy of OST data file” problem. We will also provide extensive instructions on how to put these solutions into action. Let’s get started.

Why Outlook using an Old Backup Copy of OST Data file?

“For a while now, Outlook has been presenting the error Outlook using an old backup copy of OST data file. Furthermore, Must install BLR Tools OST to PST converter tool When I tried to use Outlook for anything other than sending an email or setting an appointment, that strange error message would display.

But I finally figured it out! After trying a few different ways, such as removing and reinstalling Outlook, changing the file path, and searching for updates, I eventually found a solution that worked.

This error message could be caused by a number of factors, including:

Reason #1: Faulty or damaged data file

One of the possible causes of the “Outlook is using an old copy of the Outlook data file” error is a corrupted or damaged Outlook data file. As a result, Outlook will be unable to read the data file correctly, which may result in a number of problems.

Reason #2: The file contains an excessive amount of data

This error is exacerbated by the size of the data file. Overly huge Outlook data files may cause performance issues.

Reason #3: The version of Microsoft Outlook you’re using is out of date

If you are using an out-of-date version of Microsoft Outlook, the error message “Outlook having an old backup copy of OST data file” may show. This is due to older Outlook versions being incompatible with newer Windows versions.

Reason #4: You have numerous copies of your Outlook data file

Another source of this issue is that your Outlook data file is duplicated on your machine. This can happen if you transfer your emails from one computer to another without first wiping the previous copy of the data file, or if you install various versions of Microsoft Outlook on your machine.


How Do I Resolve Outlook’s Old OST Copy Error?

  1. Locate and delete the OST file.
  2. Finding the OST file is the first step.
  3. This file is usually found in the following location: C:Users[Your User Name]AppDataLocalMicrosoftOutlookC:Users[Your User Name].
  4. Remove the file once it has been located.
  5. Restart your computer after closing Outlook.
  6. Close Microsoft Outlook and restart your computer after removing the OST file.
  7. After your computer has rebooted, open Outlook to see if the issue notice has been resolved.

Create a fresh OST file

If wiping and restarting your computer do not resolve the issue, you will need to old backup copy of OST data file. After deleting the existing OST file from its default place, Outlook automatically produces a new one. In Microsoft Outlook, go to File > Account Settings > Data Files > Add to add data files. After selecting the newly formed folder containing your OST file, press the “OK” button.

Set the New OST File as the default

As the default data file, you must select your regenerated OST file.

  1. To do so, go to File > Account Settings > Data Files > Settings > Always use this profile.
  2. Choose the new Outlook profile name with the.ost extension from the list.
  3. After that, choose “Set as Default” and finally “Close.”

Close and restart Outlook

  1. After exiting Microsoft Outlook, restart it.
  2. The problem with “Outlook having an old copy of your OST file” should be fixed at this time.
  3. If wiping and recreating your OST file does not address the issue,
  4. the next step is to check for OST file corruption.
  5. To do so, go to Start > Search and type “%temp%.”
  6. Your temporary folder will be opened as a result of this.
  7. Look in the temp folder for files that start with “” or “tmp.”
  8. Remove any that are discovered.
  9. Scanpst can be used to repair a corrupted or damaged data file.

One way for repairing a corrupted or damaged data file is to use a tool called Scanpst. The goal of this tool is to repair any defects in your data file so that Outlook may access it without issue.

You should perform the following activities before starting scanpst.exe:

  1. First, ensure that Outlook is closed. You will be unable to view your PST file if Outlook is open.
  2. Next, locate the scanpst.exe file on your machine. Microsoft Office root C:Program Files (x86)The location is the office.
  3. However, it is possible that the file has been moved on your machine.
  4. If you can’t find it, try searching for “scanpst.exe”.
  5. When the software starts, click it and then look for your data file.
  6. After you’ve selected your data file, click Start to begin the error-checking process.
  7. If errors are detected, they can be fixed. After the scan is complete, restart Outlook to see whether the problem persists.
  8. Upgrade to the most recent Microsoft Outlook version.
  9. When this error message appears, clients may be advised to upgrade their software to the most recent version.
  10. To do so, launch Outlook, go to Help > Check for Updates, and then follow the on-screen instructions.

Outlook is constantly updated by Microsoft. These upgrades often include new features and bug fixes. Users must keep Outlook up to date in order to take use of these new features and upgrades. Furthermore, keeping Outlook updated makes it easier to maintain compatibility with other programs that connect with it, such as Exchange Server.

Secure Old Backup Copy of OST Data file

Many individuals have been dealing with the old backup copy of OST data file problem lately. We now know that there is a chance of significant data loss even with a potential cure for this problem. For this reason, recovering Outlook data is typically a smart option. And what could be more superior than turning your OST file into a PST?

However, the question remains: how can we change the format of our OST files to PST? BLR Tools OST to PST converter tool, however, can be useful. This utility is dependable and has a fast OST to PST conversion speed. All Windows OS and Microsoft Outlook versions are supported by the converter. Additionally, it has the ability to store converted OST files in a variety of formats, including PDF, HTML, MHTML, TXT, RTF, DBX, MBOX, and EML.

This tool is a fantastic option for recovering your Outlook data file for a number of reasons. The program doesn’t cause any data loss, is simple to use, and supports a wide range of formats. In addition, it’s incredibly cheap in comparison to other available solutions. Thus, this program becomes the ideal option if you’re looking for a simple way to protect the data in Outlook.

Last Word

Fortunately, the issue “Outlook using an old backup copy of OST data file” can be troubleshooted in a number of ways. You should be able to fix the problem and have your Outlook back up and running without any issues if you follow the instructions in this article. Please don’t hesitate to get in touch with our support team if you need help with Outlook or if you still have queries.

Read some more Blogs:

Leave a Reply

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