Finding the OST file can be hard for end users because it is a common difficulty for Microsoft Outlook users. You would be able to use the email client without any problems, but one day you would get an error notice that says "Outlook does not recognise the OST File." There are a lot of possible causes why this could happen, and this article goes over all of them and how to fix them.
Microsoft Outlook is currently a common way for business users to send and receive emails. There are numerous sophisticated features available, including the capacity to synchronise users' mailboxes with Exchange Server. Outlook produces an OST data file when it syncs with Microsoft Exchange Server. Like other files, OST files can also get corrupted. Outlook gets an error message saying that it doesn't recognise the OST file if this happens.
When users see this prompt, they search for a reliable way to fix the problem. But figuring out the best way to do it is not easy at all. In addition, it is crucial to obtain the perfect solution. In this article, we will provide you with an ideal solution.
Reasons Behind MS Outlook Does Not Recognise the OST File
Let's talk about what caused the problem before we go into how to solve it. There are a lot of different things that could cause this error message to show up. Some of them are written about below:
OST File Corruption: Similar to regular files, OST files may get corrupted or damaged for a number of causes, including files growing to their maximum size, viruses, and unexpected Outlook or Exchange removals.
OST File Synchronisation: Outlook generates an OST file when it syncs data with Microsoft Exchange. So, if Outlook can't connect to the Exchange mailbox for any reason and the OST file stops syncing, users may see this error message.
Resolve the OST File Not Recognised In Outlook Issue | Manually
Users can't utilise Microsoft Outlook since the OST file is broken. The users need to fix the file right away so that it can be used again, and people can start working on it again.
Users can use the following methods to fix the "Outlook 2019, 2016, 2013, and 2010 do not recognise OST file" error message:
Method 1 – Use the Inbox Repair Utility
The first method that users can try to fix the OST File Not Recognised by Outlook error is the scanpst.exe utility offered by Outlook. This built-in utility can help users diagnose and fix the damage by implementing the following steps:
To start, open the inbox repair tool.
Click the Browse button to pick the broken OST file.
To start the scan, click the Start button.
When the scan is done, it will make a list of mistakes. Next, click the Repair button to fix the problems on the list.
Once the operation is done, restart Outlook and see if the OST file works.
Method 2 – OST File Recreate
Making a new OST file and changing the cache mode of files is another way that users might be able to fix the problem. Here are the steps to make a new OST file:
To start, close Microsoft Outlook and then open the Control Panel.
Choose "Mail," and then click the "Profiles" tab.
Choose the name of the profile that goes with it.
Next, go to Properties and then Email Accounts.
Pick the email address and click the Change button.
Check the box next to "Use Cached Exchange Mode" on the Advanced Settings tab.
Now, click the "OK" button to keep the modifications.
Following these steps will create a new OST file for the email address you chose.
Minute Solution to Fix the OST File Not Recognised Issue in Microsoft Outlook
If you've tried both of the aforementioned methods and still can't get the OST file back, you need to use the automated solution. The Softaken OST to PST Converter overcomes the limitations of manual techniques.
It can even mend broken OST files so that Outlook 2010, 2013, 2016, and 2019 don't see any errors in them, and it can get back data that was lost forever. So, the users can import the output PST file directly into Outlook because the OST file cannot be loaded into Outlook. The utility also works with OST files from all versions of Outlook, including 2019, 2016, 2013, 2010, 2007, and 2003.
Conclusion
File corruption is the most typical cause why Outlook can not recognise OST files. So, it's always best to be careful with the files. We talked about the manual steps we can take to fix the problem after learning about its likely causes.
But there is a risk that the users will still get the message. Therefore, they can effortlessly eliminate corruption by employing the third-party application that was recommended in such situations.
Also Read: Find Your OST File Location
