If you set up the "Account" in Outlook, configuring it to use the Exchange server, the program should create the .OST file and sync with the server, so that your new installation has all of the messages that are on the server.
Thanks WoolWell and msmcc.
i opted for a third party tool also acc to my budget from PCVITA, their OST recovery tool was a beneficial choice for me . As it was not possible to sync an OLD OST to new account.
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