Here is a quick video tutorial on how to set the repaired PST as your default PST file in Outlook. After the repair process Remo Repair Outlook PST software creates the repaired PST file in the destination location, just you need to make this repaired PST file as your default PST to launch Outlook. This process is more suitable for users who has similar issues: default PST file missing, could not open default PST file, Outlook crash, PST file corruption, etc.