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

If you're creating an Outlook Data File (.pst), an optional password can help protect the file. When the Create Outlook Data File dialog box appears, enter the password in the Password and Verify …

Choose a location and name for your backup file, and then select Finish. If you want to ensure no one has access to your files, enter and confirm a password, and then select OK.

You can create a new Outlook Data File and drag the items in the Lost and Found folder into the new data file. After you've moved all the items, you can remove the Recovered Personal Folders (.pst) …

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

.Pst files are created when you export or back up email, contacts, and calendar to an Outlook .pst file. Outlook makes a copy of your email to the .pst file. See Fix problems importing an Outlook .pst file …

You might have stored Outlook items in an Outlook Data File (.pst) that you created in classic Outlook. If you want to open or close a .pst file, you now can do that in a few simple steps from either new …

Following are the main problems customers encounter when they import a .pst file to Outlook.

When you add a POP3 email account to Outlook or create archives or backup files from any of your accounts in Outlook, an Outlook Data File (.pst) may be created within your OneDrive.

You can create multiple .pst files if you want to archive some folders using different settings. For example, you may want to keep items in your Sent folder longer than items in your Inbox folder.