OST to PST Conversion

MS Exchange Server and Microsoft Outlook are the most popular and in-demand email platforms to the corporate houses across the globe. Instead of being quite popular amongst the global organizations, the issue of occurrence of error messages continues to haunt the users. In companies, entire systems are connected to MS Exchange Server that allows Outlook users to work in offline mode efficiently by creating OST file. The Users can even make any changes in offline mode which get synchronized with the server once an Internet connection is re-established. Offline mode is aka cached Exchange mode. However, sometimes working in offline or cached mode create a panic to the users as it comes across the following error message.

Exchange is currently in recovery mode’

The error mentioned above message doesn’t allow users to access OST file data at all.

Possible reasons for “Exchange is currently in recovery mode”:

The error message, i.e. (Exchange is currently in recovery mode) occurs in following situations:

  1. If there are any inconsistencies between the cached copy on the client/local machine or in the Exchange Server database.
  2. The error “Exchange is currently in recovery mode” also appears in the cached Exchange mode is enabled while resetting Exchange mailbox.
  3. Poor network connectivity between the local machine and the server could be another reason for such error.
  4. When the client or local mailbox has been moved to a different Exchange Server version.

In any of the situation mentioned above, the signature of the OST file doesn’t match the signature of Exchange Server database of the new version.

Methods to resolve “Exchange is currently in Recovery Mode” error:

Method 1. Turn off/Disable Cached Exchange Mode:

If you are working on Outlook 2003 and its later versions, and the Cached Exchange Mode is enabled, it is quite apparent to come across the above error message, Hence, to get rid of such error, it is advised you to disable Cached Exchange Mode. Follow the below instructions to disable the Cached Exchange mode.

  1. Launch the Outlook.
  2. Go to the Tools menu, navigate to Email Accounts, click View or change existing Email Accounts, then hit Next.
  3. Now in the Outlook processes email for these accounts in the following order list, opt for the Change option.
  4. Turn off/Disable the Use Cached Exchange Mode under Microsoft Exchange Server.
  5. Finally Exit and Restart Outlook.

Once “Disable Cached Exchange Mode” process gets complete. You can delete the old OST file. And again you can Turn on/Enable the Use Cached Exchange Mode by following above method. Besides this, if in case your mailbox has been migrated to a different Microsoft Exchange Server environment, you can rectify such issue by creating new Outlook profile.

Method 2. Create new Outlook Profile:

When Exchange Server environment gets changed, you have the only option left to create a new Outlook profile, because you will get difficulty in accessing OST file as the signature of OST file doesn’t match with the new Exchange Server database. To create new Outlook profile, one can follow the steps mentioned below:

Note: You must have to Close MS Outlook before performing below steps.

  1. Click Start, navigate to Run and type Control Panel, then hit OK.
  2. Now go to User Accounts.
  3. Double-click on Mail option.
  4. Click on Show Profile in the Mail Setup dialog box.
  5. Click Add, type the name that you want to give to the profile and hit OK.

In this case, you would not be able to access the previous email data since your mailbox lies on the old Exchange Server mailbox. The only option left to recover data, one needs to perform OST to PST recovery and conversion process. Since OST files cannot be accessed in any other way, hence, converting OST to PST will help you locate essential data with MS Outlook.

Have you ever deleted or modified the original MS Exchange profile from the server Unintentionally? Or have you lost mailbox from your MS Exchange user account? In either of the conditions, you may have lost mailbox data permanently as your mailbox contains entire essential emails, attachments, journal entries, contacts, calendars, tasks, lists, notes, etc. Sometimes, the worst situation when MS Outlook users have to face unintentional user profile deletion issue. Once Exchange Server mailbox gets deleted from the server, all the critical data is deleted. Though, you can still have OST files which are located on the client system.

What is OST?

MS Outlook is a popular utility that allows its users to work in offline mode. OST files (Offline storage table) are the replica of the user’s mailbox on the Exchange Server that only makes entire emails and other items accessible to you when you are offline. It facilitates its users to work in offline mode and get synchronized with the Exchange Server when the Internet connection is re-established. However, sometimes if it takes a long duration to establish re-connection between MS Exchange Server and MS Outlook, you might lose your entire OST files and its associated mailbox items.

Why user profile or OST gets inaccessible?

Below are the reasons why user profile or OST file gets inaccessible:

  1. Due to Synchronization failure
  2. Due to Unintentional user profile or OST file deletion
  3. Due to Virus or malware attacks
  4. Due to Sudden/abrupt shut-down
  5. Due to modification of Exchange profile

There may be numerous other reasons which prevent you from accessing your essential emails, calendars, contacts, notes, appointments, etc. However, losing data might be frustrating, but this has a way out. If you work in offline mode, you must be using OST file to communicate.

What to do if OST file becomes inaccessible?

Though, OST file is a quick and efficient way to access Exchange mailbox data without having Internet connectivity, but sometimes due to technical glitches, OST file becomes inaccessible. Now the question is, how one can access it? To obtain its data stored in it, you will have to convert it into PST file. You can perform this task using an OST to PST file converter tool. You can easily convert OST file to manageable PST format to access it swiftly. After OST to PST conversion process, the OST data that were inaccessible earlier turns accessible once again in Outlook PST files.

Reason to perform OST to PST Conversion:

  1. When MS Exchange Server gets crashed due to abrupt shutdown, power failure, virus attacks, etc. you will not be able to access your essential mailbox. In such case, you must have required OST to PST conversion tool to restore or access your inbox.
  2. During Exchange Server downtime or maintenance, it is difficult to obtain mailbox items. So it is mandatory to perform OST to PST conversion to access the mailbox items smoothly.
  3. While retrieving/accessing mailbox items from password protected OST files, OST to PST conversion could be a handy tool to recover inaccessible or orphaned data and save them to PST for easy and quick access.
  4. Performing OST to PST conversion helps users to retrieve damaged OST file from its corrupt state and move them to PST for smooth access.

Although, if you are dealing with minor issues, you can opt for scanpst.exe utility provided by Microsoft. But if the problem is severe, it is wise option to go for an automated tool. Third party OST to PST Converter tool can comfortably resolve your issue by converting inaccessible OST file to accessible PST format. It is incredibly user-friendly and convenient tool. Non-technical or a novice user can smoothly operate it due to its user friendly GUI. Besides this, for the user’s convenience, it also provides facility to convert OST file to DBX, MBOX, MSG, EML, and HTML format.

MS Outlook is one of the most widely used email applications. It is used for online communication in large as well as small organizations. Many MS Outlook users are familiar with OST and PST files. However, PST files are more often used than OST on a daily basis as PST files are used by Outlook to store user mailbox data. Whereas, OST files are used by Exchange Server to store emails and mailbox items.

Besides this, Offline storage table (OST) file allows users to work in the absence of Internet connectivity or in offline mode too. Users can send or receive any email data through Microsoft Exchange Server. However, on the other side, it is also vulnerable to corruption due to several reasons such as virus attacks, dirty or abrupt shutdown, power failure, etc. Furthermore, many Outlook users might have witness below error at the time of denied access to OST files.

‘Cannot open the default email folder, the file xxx is not an Offline folder file’

Possible consequences for such an error message are due to corruption in OST files and hence OST files becomes completely unusable as users cannot open or access any of their vital emails, notes, calendars, tasks, contacts, and journals. Though, whenever such errors display in the Exchange Server database or user mailbox, one can re-create the user profile to access OST file. However, OST file cannot be accessed directly. To access it, it is required to convert it to PST format and then open it with MS Outlook.

Following are the Reasons of OST file corruption:

As you know that OST files are vulnerable to corruption due to several reasons, such as:

  • Virus and Malicious attacks
  • Exchange Server downtime or maintenance
  • User profile deletion
  • Exchange Server database corruption
  • Sudden power failure
  • Hardware or Software issue
  • Abrupt termination of Outlook
  • Synchronization error

Situation that demand Migration of OST file to PST:

You might face some unavoidable situations, where you need to convert your OST file to PST to recover data from OST files.

  • Over-sized OST file could be the reason to migrate OST file to PST
  • Unintentional deletion of crucial mailbox items from OST files
  • Exchange Server is in recovery mode

Ways to restore inaccessible OST files

To restore inaccessible OST files, one can perform conversion process to retrieve data from OST files either by selecting manual method or using an automated OST recovery tool.

Manual Method to restore inaccessible OST files:

Scanost.exe could be a handy tool to repair or recover inaccessible OST files. Though, in Outlook 2010 and later versions you cannot find this utility as it is only used in earlier versions. So, to cope up with such issue, it is advised you to export the local OST data to an Outlook PST and then delete your OST file. Once the data is downloaded from the Exchange Server, you can directly import the PST data into the new Offline data file (OST).

Below are few simple steps to import Outlook PST file to new offline data file (OST) as follows:

  • Go to File tab, click Open and click Import.
  • In Import and Export Wizard window, choose Import from another program or file, and then hit Next.
  • Choose Outlook data file (.pst), and click Next.
  • Now click on Browse button, and locate for the PST file that has been exported earlier.
  • Click on Do not import duplicates, and then click Next.
  • Now under Select destination folder, opt for a folder to which you want to import the information, and hit Next.
  • Finally click on Finish button to begin the import process.

What if manual method doesn’t work?

Although the above manual method is helpful but not completely reliable and successful. Furthermore, there might be a situation where one can face difficulty while performing manual process as it is very lengthy and complex process to execute. Using third party OST to PST tool, you can eliminate such kind of risks and get back your inaccessible OST files just in a matter of time.

Conclusion: To perform recovery and conversion process, you can either use manual method or take help from any automated third party tool. The advantage of third party tool is, it gives you the complete guarantee to recover and restore inaccessible OST file without losing any data.

MS Outlook provides an excellent e-communication environment to small and large organizations. It is a brilliant utility to access Outlook data such as emails, journals, calendars, attachments, tasks, notes, appointments, messages without having Internet connectivity. This is all possible using OST files. OST files are also known as Offline Storage Table. It keeps all your mail items in offline mode. However, once you will be connected with Exchange Server, the Outlook itself synchronizes with Exchange Server and saves the changes made offline in the Exchange database file. But, there can be a situation, when OST file and its associated data items become inaccessible. In such circumstances, one need to move an OST file and its data into an Outlook PST file format.

Here’re some of the situations that might compel you to convert OST file to PST are given below.

  • Exchange Server crash due to power failure
  • Exchange Server maintenance and downtime
  • Virus and malicious attacks
  • Database corruption issue
  • Abrupt shutdown
  • Accidental mailbox deletion
  • Modification or deletion of Exchange profile

There can be numerous other situations in which users can lose their essential data in the form of emails, notes, drafts, calendars, tasks, appointments, attachments, etc. Therefore, to overcome such situation, one need to repair the OST file. However, to do so, you can opt for a Scanpst.exe utility. The tool is effective only if the corruption is minor. In the case of severe corruption, it might be risky to use any manual method as they are prone to errors and even are not trustworthy at all. So, to perform such task, it is required to choose a reliable and trustworthy professional tool.

One stop solution: The OST to PST Converter tool has a capability to deal with OST file corruption issues. Users having basic knowledge of the tool can easily operate and perform recovery and conversion task swiftly. Once the conversion task has completed, you can again import OST file back to the MS Exchange Server just in a few mouse clicks.
There are some prominent features of the tool are mentioned below:

  • It allows you to convert and restore inaccessible OST file to accessible Outlook PST.
  • It supports recovery of ANSI and UNICODE characters for different languages.
  • It supports entire MS Outlook versions including Outlook 2016 and all its earlier versions. And also supports all Windows versions including Win10.
  • It facilitates its users to recover emails, journals, contacts, notes, tasks, lists, attachments, appointments, etc.
  • It allows you to convert OST file to PST, EML, DBX, MBOX, HTML, MHTML, MSG, and RTF format.

Conclusion: The above mentioned method will allow users to recover and convert corrupt or healthy OST to PST efficiently without hampering its original data. Furthermore, it is also help users to recover and move small as well as large OST file to well-known Outlook PST.

MS Outlook provides a platform to communicate within organizations. The Users can retrieve entire data which include emails, attachments, drafts, notes, contacts, journals, calendars, tasks, appointments, etc. in offline mode or in the environment where Internet connectivity is limited. It is all possible with the OST file as it allows users to access mailbox items without an Internet connection. Furthermore, you can also make any changes in OST file in the absence of the Internet and it gets synchronized with the Exchange Server when the Internet connection is resumed.

When and how to convert OST file to PST?
The need of converting the OST file into PST format occurs when the OST file is not usable due to error or corruption. Here are few situations which showcase the need of OST to PST conversion:

User’s mailbox has been deleted from Exchange Server: If your mailbox is deleted from Exchange Server due to virus attacks, dirty shutdown, malicious attacks, abnormal termination, software related problems, etc. and after a certain period of time you feel the need to have the mails in that deleted mailbox back, then you can make use of OST file. If you have the OST file with you, then you can easily convert OST file to PST file and access the data with MS Outlook. Consider a situation when you have to travel abroad and you carry your OST file with you but Exchange Server is not available with you. Then you would surely feel the need to convert OST to PST to get access to all the email items in it.
Exchange database file has been damaged: Due to frequent use of Exchange database, the file might get corrupt and in every such situation of corruption, OST file can act to be the safest bet for fetching your essential mailbox items back. You just need to convert OST file to PST and access the imperative data with MS Outlook.
Abrupt Exchange Server crash: The only drawback with OST file is that you cannot access emails and other items stored in it directly with the help of MS Outlook. To do so, you must have Exchange environment to access emails and other items from OST file. If in case Exchange Server crashes, then you have to convert entire OST files to PST for quick access.
Damage caused to OST file after reaching a certain size limit: The previous versions of OST and PST files of MS Outlook had a threshold limit of 2 GB for data storage. If not much care is taken of such situations, the OST file get damaged. Therefore, it is always suggested to convert OST to PST so that you can access your emails through MS Outlook.

The Conclusion: Though, all the situations mentioned above might have faced by many users across the globe or even dealing with on a daily basis. So, to overcome such situations, one need to convert OST to PST to save the essential data.

There are millions of Outlook users across the world and all of them prefer Outlook due to its advanced features such the feature of working Offline. The main advantage of OST files is that these files allow Outlook users to work offline in Non-Exchange environment by serving them the purpose of utilizing time when they are offline. Using OST file, a user can create, edit or delete emails, contacts, notes, journals, and appointments etc when they are not online on Exchange Server. But still there are times when you have to convert ost to pst. Mentioned below are such situations:

User mailbox been deleted from MS Exchange Server- Suppose your mailbox gets deleted from Exchange Server and after sometime you realize you need some mailbox back. Now if the OST file is there with you, you can easily and quickly convert ost to pst and access the data with MS Outlook.

Also, suppose you are going abroad for a business meeting and you take your OST file along (where Exchange Server is absent). Now until you convert ost to pst, you won’t be able to access the email items.

EDB file gets damaged- Due repetitive utilization of EDB database; your Exchange Server database file gets corrupt. At this point in time, your OST file acts as a backup of your previous data. Convert ost to pst and access your email data by accessing the recovered data with MS Outlook.
Exchange Server crashes- Only issue with OST file is that you cannot access email and other items with MS Outlook. In order to access emails from ost file you have to convert ost to pst so that the data can be accessed directly with MS Outlook.

2 GB limitation- MS Outlook versions from 97, 98, 2000, 2002 or 2003 have a 2 GB maximum limit for Offline Folder Store (OST) and Local Personal Store (PST) files. If not taken care of this issue, it can corrupt the entire database, therefore it’s better to convert ost and access mails with MS Outlook for ease in manageability.

All these above-mentioned issues lead you to convert OST to PST so that you can access email items in these files easily.

Use of Integrity check tool that is a free Microsoft product will surely help you repair damaged OST file. As we all know OST file is created while a user works offline without any network connections and like any other file, OST too faces the heat of corruption.

To combat these issues you can rely on Integrity check tool. Integrity check tool is a Microsoft product, which helps you to repair the damaged Offline Storage Table (OST) file located on your computer system. An OST file is the backup copy of your mailbox on Exchange Server. If the file is damaged then you may lose all of the emails, contacts, notes, calendars, etc. stored in it. But there is nothing to worry about the file’s damage because Microsoft Integrity check tool is there to help you. This amazing utility from Microsoft compares the OST file on your computer system with the folders in your mailbox on Exchange Server and corrects the differences, if found. This way the Integrity check tool repairs the damaged OST file.

If you want to have Integrity check tool with you, then you don’t need to worry as this is a freeware from Microsoft.

Therefore, you can download it for free from Microsoft download center. Moreover, the utility is not too big; it is very small. After you have downloaded the tool, install it, and then execute the following steps to know the process of using the tool:

1. Exit Microsoft Outlook.

2. Click Start > All Programs > Microsoft Office > Microsoft Office Tools > Outlook OST Integrity Check Tool. Ver denotes the version of MS Outlook installed on your computer system, which can be either 2000, 2002, or Vista.

3. Click the Scan all folders option to scan all folders in the OST file.

4. Click the Begin Scan button.

The software starts scanning the folders in OST file. When the software scans the folders, a log file of the software working is created in the “Deleted Items” folder that can be viewed in MS Outlook. However, Microsoft has provided this free tool to repair the OST file but there is no surety of whether the file will be repaired successfully or not. This is because you cannot access the OST file using MS Outlook then how will you confirm that whether the file is repaired or not. You have to convert the file into PST and then you can access the file with Outlook if the file is repaired successfully.

Use Kernel for Convert OST to PST Software to successfully convert OST file into PST file, so that you can easily access any version of MS Outlook.

MS Outlook is, by far, the most extensively used email client that works in tandem with MS Exchange Server. At times a user feels unable to work due to failing network connections. However, to ensure their clients don’t face any issue in future, Microsoft came up with one of its most alluring feature.

One of the tempting features of Microsoft Outlook is “Work Offline.” In the work offline mode, Outlook provides you the facility to create, edit, delete, and save email messages, notes, contacts, calendar items, etc. in offline mode. That is even when you are not connected with the Internet at a specific moment or Internet is not working, you can use Outlook to create and modify emails. This amazing feature not only saves your time but also lets you learn the fundamentals of time management. A question that may be rising in your mind is if you are not connected to Internet then how the emails you create will be delivered to the concerned email address.

The emails created during the offline mode are saved into a file named Offline Storage Table (OST) file, which automatically synchronizes with your mailbox on Exchange Server when you connect with Internet. On synchronizing, all of the actions taken during the offline mode are automatically completed. For example, if you have draft an email to send to the xyz@bac.com email address then the mail will be automatically sent to the specified email address after a successful synchronization. At times, the synchronization process might fail if the OST file is damaged.

In case the synchronization process fails due to corrupt OST file, you need to repair and convert OST file into PST file to access the messages stored in the damaged OST file. This is because Outlook does not provide any facility to directly access items of OST file. You can convert OST to PST using a third-party email conversion tool like Kernel for OST.
Kernel for OST is an efficient, sophisticated, and comprehensive tool designed for repairing the damaged OST file and converting the repaired OST file into PST file. Following steps help you to use Kernel for OST:

1. Download and install Kernel for OST – Convert OST to PST software.

2. Browse the OST file to convert into PST file.

3. Start the conversion process.

4. Save the converted file at user-defined location.

This way Kernel for OST is simple to use, effective, and mind blowing OST to PST conversion software. You can try the evaluation version before purchasing the software, as the evaluation version will give a brief on how the software works.

A majority of organizations across the globe rely on MS Exchange Server for their routine working schedules. Exchange Server enables its users to work offline so that they don’t have to compromise on anything, even network connection.

Cached Exchange Mode is a feature of Exchange Server, which enables you to work with MS Outlook in offline mode. During the Cached Exchange Mode, a local copy of the user’s Exchange mailbox is created on the computer’s hard disk. This local copy is called Offline Storage Table (OST) file. The OST file enables you to work offline with MS Outlook in the same way as you work with Outlook when connected with Exchange Server.

The work you do in offline mode will get automatically synchronized with your mailbox on Exchange Server when you logon to your Outlook account. But, sometimes when synchronization fails then working in Cached Exchange mode may also lead into the loss of the work that you have done offline. Synchronization can be failed due to following reasons:

* Mailbox has been infected from a virus.
* Mailbox has been damaged due to the damage of Exchange Server.
* Mailbox has been deleted from the Exchange Server.

Whatever be the reason for the failed synchronization, you are left with nothing but data loss because the OST file becomes inaccessible. In that scenario, you need to convert ost to pst in order to access the email messages with MS Outlook.
Kernel for OST is an advanced, reliable, and cost-effective software, which helps you convert ost to pst without any limitation of file size. You can quickly convert a large ost to pst in just few moments. The software supports all versions of MS Exchange Server starting from Exchange Server 5.0 to Exchange Server 2007.

MS Outlook is used extensively for working offline across the global work places. Working Offline is one of the most tempting features offered by MS Outlook. At times you might face network unavailability and this is when this feature helps you continue communication.

All those who are using MS Outlook as their email client, know the importance of OST files. OST files contain data of inbox, calendars and tasks, deleted items. The Offline storage files enable a user to work offline and update the changes through synchronization. In fact, no network connectivity is required to work with OST files; a user can perform all tasks like online mode.

All changes that are made in an OST file are updated through synchronization process but sometimes the synchronization fails and user fails to update these changes. This is the situation where the need to convert OST file to PST emerges. Usually, synchronization fails due to Exchange account deletion, virus contamination, email deletion and Exchange server errors. In such situations, OST file becomes inaccessible and the only way deal with it is converting the OST file to PST file.

Now the question arises that how to convert OST to PST? Solution is simple, as Kernel for OST to PST is there to perform the conversion task. It simply extracts all emails and other data from the inaccessible OST file and saves them to PST file. The PST file thus created can be easily accessed with MS Outlook. Even emails that have been deleted from Deleted Items folder can also be extracted using this software. You can try out the demo version for experiencing the potential and ease of this tool to convert OST to PST.