Can anyone suggest me a truly freeware software to convert OST to PST format for MS Outlook 2013 without losing any important data during conversion?
Any help would be appreciated,
There are no free applications that can convert OST to PST for free. There are plenty shareware applications, but they require money to unlock the full potential for your files and conversion options.
I've looked through various websites and didn't find anything compatible. You should try the apps listed on the following page: http://software.informer.com/search/ost+to+pst
If you are looking for completely free software then you have a misconception. There is no such utility that convert OST files into PST for free. Yes there are many demo versions but they come with the limitations. However I will suggest you to pick the brands like Sysinfotools, Kernal, Systools, Stellar instead of any common software. https://download.cnet.com/SysInfoTools-OST-to-PST-Converter/3000-2369_4-77494474.html