Transferring Outlook to New Computer - The Basics
For transferring Outlook to a new computer, you can simply copy the PST files from the older computer to a removable device. Once done, you just need to add these PST files to Microsoft Outlook on new computer. Copying PST files helps you transfer Outlook information to a new PC as these files contain all the data pertaining to one or more e-mail accounts plus other information such as Contacts, Calendars and Tasks. It also stores the rules that you create for the e-mail account(s) related to that PST file.
Basically, your default folders for Contacts, Calendars, Tasks etc are stored in Outlook.pst. The Outlook.pst also contains e-mail settings for your first POP3 account. When you configure other POP3 e-mail accounts, Microsoft Outlook creates a different PST file for each. Similarly, it creates a different PST file for each IMAP and HTTP account that you configure using Microsoft Outlook.
If you want to transfer Outlook information to new computer, you need to copy the Outlook.pst file to the new computer. Also, you need to copy all other PST files pertaining to other POP3 accounts on your old computer.
You can choose to omit the PST files pertaining to IMAP and HTTP accounts as these files just hold the basic information about synchronization of folders, account settings, etc. They do not really contain your e-mail messages. If you are using Outlook 2007 or Outlook 2010 on the new computer, you can omit copying PST files pertaining to your IMAP and HTTP accounts and let Outlook configure the e-mail accounts again on the new computer. If you are using Outlook 2003 on the new computer, you may want to save time on manually configuring the IMAP and HTTPS accounts. In this case, it is better to copy the PST files pertaining to these accounts.
Tip: If you have not configured the Outlook on new machine yet (2003 and above), copying all PST files may save you time on configuration. Most of the times, Outlook will pick up information from these files to configure itself to give you all the accounts you configured on the old computer.
The following explains transferring Outlook to new computer.