Tools -> Options -> Other
Data Archives
Outlook
lets you Archive old E-mails, Meetings and completed Tasks.
The
archives will be saved to a Personal Folder (Archive.pst file) that
you can save on your hard drive, a memory stick, or burn on a CD.
The
benefit of AutoArchive is that Outlook will remove the old
messages for safe keeping, maintaining a minimum set in your Outlook
data file.
AutoArchive is also one way to move items from the corporate
Exchange Server stores to a personal file, perhaps an Archive.pst.
Memo to Self: There are
several paths to the Archive settings. This page shows the
Tools-> Options.