Summary – Are you getting Default Outlook Profile.ost cannot be opened error while using Microsoft Outlook 2016, 2013, 2010, 2007? Are you looking for a reliable solution but can’t get one? No need to worry as we have come up with a solution which will help you to resolve default Outlook profile.ost is in use and cannot be accessed error in an efficient way.
A large number of users who are familiar with Microsoft Exchange and Outlook might have knowledge of what OST file is. For those who don’t know, the OST file is a data file which stores all the Outlook mailbox data in it. The file is stored on the local machine in which entire email messages, contacts, calendar, etc. are stored. Whenever the Outlook gets connected to Exchange, all the file changes are synchronized to the mailbox server.
Though, while using Microsoft Outlook, some of the users encounter an error message stating that Default Outlook Profile.ost cannot be opened. It means that whenever a user tries to access Outlook, it throws an error and that user cannot use Outlook until the issue is fixed. Therefore, it becomes really important to resolve the error immediately so that the email communication of the users is not affected. But, before directly going to the solution, it is essential to know the reasons behind the message.
Important Note: If you want to resolve the issue without wasting any time and as quickly as possible, you can go for the expert-recommended solution.
There could be many possible reasons which can be possible for the above-stated error. But, some of the most common causes are listed in the following section:
Method 1 – Terminate All Outlook Related Tasks
Initially, the users can try implementing the following steps to eliminate the error:
Method 2 – Disable the Cached Exchange Mode
Another method using which the users can resolve default Outlook profile.ost is in use and cannot be accessed issue is by turning off the Cached Exchange Mode. Execute the below-mentioned steps to do the same:
Method 3 – Run ScanPST.exe Utility
If all these methods fail to eliminate the Default Outlook Profile.ost Cannot be Accessed / Opened error for you. Then, there might be chances that the OST file which you are trying to access is corrupted or damaged. Thus, this utility can help you to remove the corruption from the file. You just have to perform the following steps:
The users can try all the above mentioned manual procedures to resolve the issue. But, these methods have some limitations and it is not guaranteed that the users will successfully eliminate the error. Therefore, we have come up with a reliable solution i.e. Outlook OST to PST Converter which will help users to convert their OST file into Outlook accessible PST format. After the successful conversion, the users can import that file into any Outlook application.
Moreover, the software also maintains the exact structure of the emails as it was before in the OST file. Also, the inbuilt utility only allows users to remove a minimal level of corruption. Thus, if the OST file is severely damaged then scanpst.exe fails to repair the file. So, this third-party application proves to be the best solution as it overcomes all the limitations faced in the manual procedures.
Following steps are how you can solve the issue:
Step 1 – Download the software for conversion and click on the Add File option.
Step 2 – Navigate the file you want to convert and hit Open.
Step 3 – Hit on the Export button after previewing the data.
Step 4 – Choose PST as export type, Browse for destination path and press Export.
The OST file holds a great importance for Microsoft Outlook. If it gets inaccessible due to any reason, then it can stop the email communication of the users and they cannot access their mailbox data. One such error is Default Outlook Profile.ost Cannot be Opened / Accessed. There are some manual methods which are available to fix the issue of the users. But, there are some limitations associated with them. So, the third-party utility is always suggested to have a secure and reliable solution.