

Once data is migrated and converted, you can easily import the data in PST format in your Outlook easily. So one can directly convert OST file format to PST file format using a reliable OST to PST Converter software. This method is a sure shot recovery method for orphan OST files.
#Outlook 2016 will not open windows 10 professional
Ending the MS Outlook process, along with the other processes mentioned above and then restarting MS Outlook again may solve the problem Use Professional OST to PST Converter tool to fix “OST File Won’t Open in Outlook” Error Moreover, sometimes the MS outlook getting hanged or unresponsive may create the OST file opening problem. It sometimes happens that some processes or applications running in the computer system may stop the OST file from opening. Then again reopen the MS Outlook and try to open the OST file.


You have not configured your email account, according to Outlook,.Well, there are many reasons for such technical disability. It would be a precarious situation, right? Not only you, but many people from all walks of life and using MS Outlook, frequently complain that Microsoft Outlook 2016 won’t open OST files on their system. You see an error message that “OST file cannot be opened”. Now the next time, you are unable to open the file on your outlook 2016. You would be relaxed that all such information is stored as a cached copy in OST file. Think of a situation where you had written a mail of all the business proceedings and attached vital data to the mail and suddenly your internet connection gets disrupted. OUTLOOK 2016 WON’T OPEN OST File – A Frequent Issue
#Outlook 2016 will not open windows 10 Offline
Generally, the IMAP accounts, exchange accounts, Office 365 accounts use this offline outlook data file (.ost) to store a cache of the data from your Microsoft outlook. Once the internet connection is re-established, or restoration of access to mail server happens, the messages and the data items get automatically synced. So, when your internet connection gets disrupted, you can still access the local copy of emails and data in your outlook and work on them.

A clone or replica of all your mail messages and data in the exchange server mailbox is saved on your local computer automatically, as an OST file. The offline folder allows users to work on their messages and mail the data offline, even when access or connection to the mail server is not there. OST is an offline file folder present in Microsoft Outlook.
