Describes how to investigate items in an Outlook Data File (.pst) and troubleshoot search issues.

Create Outlook Data Files (.pst) on your computer to save Outlook items by account, project, or to archive older items.

Open and close Outlook Data Files (.pst) that contain copies, archives, or backups of your Outlook information.

If you cannot open your Outlook data file or suspect that the file is damaged, use the Inbox Repair tool (scanpst.exe) to repair errors in the file.

Outlook stores backup files containing email, calendars, contacts, tasks, and notes on your computer. Learn how to find them.

You can create a separate Outlook Data File (.pst) that you can open from Outlook any time you need it. By default, Outlook automatically archives items at a regular interval.

Learn how to find out the size of your mailbox and its folders and how to compact Outlook Data Files (.pst and .ost), which might help improve performance.

Learn how to use encryption and other security settings to protect messages sent from Outlook.

Learn how to recover deleted items, such as email, contacts, calendar appointments, and tasks in Outlook.

Sensitivity labels help classify and protect your organization's data without compromising productivity or collaboration. Administrators must have previously configured sensitivity labels …