July 24, 2024

Outlook Using an Old Backup Copy of OST Data file

This post will provide you with the best methods for fixing the problem of Outlook using an old backup of the OST data file. Expect clear instructions to assist you in implementing these solutions smoothly.

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. This may result in Outlook encountering difficulty in correctly processing the data file, resulting in various issues.

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Reason #3: The version of Microsoft Outlook you’re using is out of date

If you are using an out-of-date version of Microsoft Outlook, the error message “Outlook having an old backup copy of OST data file” may show.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

To resolve this issue, you can check for duplicate Outlook data files on your machine. This might happen if you transfer emails between computers without removing the previous data file, or if you install multiple versions of Microsoft Outlook.


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

  1. Locate and delete the OST file.
  2. Firstly, find the OST file.
  3. This file is generally located in: 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. Once you’ve deleted the current OST file from its default position, Outlook promptly creates a new one. Click on File > Account Settings > Data Files > Add within Microsoft Outlook to add data files. Choose the newly formed folder with your OST file, then press ‘OK’.

Set the New OST File as the default

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

  1. To proceed, open File, access Account Settings, Data Files, Settings, and confirm Always use this profile.
  2. Select the new Outlook profile name with the .ost extension from the available 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’s old OST file should be solved.
  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 this, just click 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.

To fix a corrupted or damaged data file, Scanpst can be a helpful solution. Its purpose is to rectify any issues within the data file, allowing Outlook to access it smoothly.

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 find, 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 proceed with this task, launch Outlook, click on Help > Check for Updates, and then follow the on-screen prompts.

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. Also, by keeping Outlook updated, you ensure smooth compatibility with other software such as Exchange Server, which interacts with it.

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 challenge remains: how do we change the format of our OST files to PST? BLR Tools OST to PST converter tool provides the answer. With its dependable performance and rapid conversion, it is compatible with all Windows OS and Microsoft Outlook versions. Also, it supports the conversion of OST files into different formats such as PDF, HTML, MHTML, TXT, RTF, DBX, MBOX, and EML.

There are many reasons why this tool is praised as one of the finest for recovering your Outlook data file. The program doesn’t cause any data loss, is easy 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. If you follow the instructions outlined in this article, you should be able to resolve the problem and get your Outlook back up and running without any difficulties. Should you require assistance with Outlook or have any unresolved queries, please reach out to our support team.

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