When my Outlook profile got deleted, I was left with just an OST file and no Outlook installed on my system. I needed a way to convert OST to PST without going through the hassle of reinstalling everything. That’s when I used SysInfo OST to PST Converter. It allowed me to open the OST file, check all the emails through the preview option, and then convert everything into PST format. The entire process was quick and didn’t require Outlook at any stage.