Handling the Notification “Errors in the OST has been Detected”

Errors in the OST has been Detected

To fix the problem like errors in the OST has been Detected, use the procedures described in this article. However, if the issues are not repaired, you can extract the mailbox contents from the OST and save it as Outlook importable PST file by utilizing the best OST to PST Converter software.

The OST, or Offline Storage Table, is a copy of the Exchange server’s mailbox data. When you configure or sign in to MS Outlook using an Exchange, Office 365, or IMAP account, an OST file is created on your local PC.

Even while the system is unavailable, users can access, read, and draft messages. When the machine is connected to the internet, all modifications made offline are synchronized with the Exchange server. However, difficulties with the OST file can cause users to have trouble with Outlook.

Ost Symptoms that indicate a Problem

The following are some of the most typical signs of an OST file problem:

  • It takes a long time for Outlook to load/start.
  • Recipients or senders of fresh emails are experiencing delays.
  • Issues with synchronization of mailboxes
  • Outlook routinely crashes or freezes.
  • If these signs go unnoticed, they might lead to major problems such as OST file corruption and errors.
    Your offline Outlook OST file has been found to be corrupted.
  • The Outlook data file is inaccessible.

Causes of Outlook Data File Errors

Outlook data files, such as OST, are generally trustworthy. It may, however, stop working or become damaged for a variety of reasons, including:

  • Infection with malware or a virus
  • Unexpected power outage
  • A system failure has occurred.
  • OST file with a large (oversized) size
  • Errors on disc
  • Sectors with poor performance
  • Add-in for Outlook that isn’t compatible
  • Close the ‘Not Responding’ window. Microsoft Outlook is a software program that allows you to
  • Mistakes in synchronization

As a result, when using MS Outlook, you may encounter the following OST problem.

In the file C: UsersUser NameAppData Local Microsoft Outlook FileName.ost, there are errors. To diagnose and fix issues in the file, close Outlook, and other mail-enabled applications, and then run the Inbox repair tool (Scanpst.exe). See Help for more details on the Inbox repair tool.

Errors in the OST has been Detected and How to Fix Them

Because the issue appears when you try to access Outlook, you can repair the OST file and correct the errors found in it with a few simple actions. The following are some of them:

1. Restore the OST file from a backup.

The most effective technique to resolve errors in the OST has been detected is to replace the corrupted OST with a backup copy. However, you won’t be able to recover recent data if the backup was not taken recently. This may fix the problem, but it may also result in data loss.

2. Switch to Safe Mode in MS Outlook.

If the issue is caused by an incompatible or damaged add-in, run MS Outlook in safe mode and then disable all add-ins. Export the OST data to PST for backup after it has been disabled.

  • To open MS Outlook in safe mode, follow these steps.
  • Type Outlook /safe in the Windows+R search box.
  • Click ‘OK’ or press ‘Enter.’
  • After that, select a profile and click ‘OK.’

Only important add-ins are loaded in safe mode, which will assist you in locating the broken add-in (s). Remove the defective add-ins if this works and Outlook opens in safe mode without any issues (or third-party add-ins). Then, in normal mode, open MS Outlook to see if the problem has been repaired.

3. Use the Inbox Repair Utility to repair the OST file.

ScanPST.exe is an Inbox Repair application included with Microsoft Outlook and may be found in the MS Office Outlook installation directory. Before Outlook 2013, Microsoft had two built-in Inbox Repair applications for fixing Outlook data file errors.

  • ScanPST.exe is a program that scans your PST files (for PST files)
  • ScanOST.exe is a program that scans your computer for viruses (for OST files)

NOTE: If your Exchange profile is active and linked to the server, this will work. Outlook will fail to regenerate the OST file if your profile is deleted or disabled from the Exchange server.


In conclusion, I hope you were able to correct the errors in the OST has been Detected in the OST file using one of the techniques listed above. If none of the above methods work, you can use Converter for OST to convert OST to PST. The software safely and accurately transforms an OST file to an Outlook importable PST file. After you’ve converted the OST file, you can use the Import Export wizard to import the PST file into Outlook, which will fix the OST file issues and allow you to view your mailbox contents.

By utilizing the Converter for OST – Technician version, you can save the OST data in different formats like EML, MSG, PDF, and RTF, as well as export the data from the OST file to real Exchange or Office 365 accounts. Now you may do it yourself by downloading the free demo version of the software.

Be the first to comment

Leave a Reply

Your email address will not be published.