I am using Microsoft Outlook 2007. My Outlook.pst file was 10.7 GB. I created an archive and set it to archive anything older than 60 days. The Archive.pst file that was created is 10.2 GB. My confusion is that the Outlook. pst file is still 10.7 GB in size! I thought that when you archived items within Outlook that they were removed from the Outlook.pst and put into an archive file. Meaning that based on that expectation, my remaining Outlook.pst file should be about 500 MB, not 10.7 GB. What am I missing?