... LiB ] Backing Up Your Data Many people don't think about backing up their data until something happens and they need to restore it. Don't be one of them: Back up your PST regularly, ... hidden items in the folders. When you want to back up your data or move it to a new computer, find the PST and copy it. Unless you moved your PST to a new location, Outlook stores the PST at ... Data\Microsoft\Outlook. Close Outlook, find the file, and make a copy. To make it easier to back up your PST, move it to your My Documents folder. Close Outlook, find the PST, and move it. Reopen Outlook...