Microsoft Outlook 2010 can slow down considerably over time if you use it as your main e-mail client due to the sheer volume of messages you send and receive. This can happen if you do not split your e-mails into different Personal Storage Table files. PST files are like cabinets that store e-mail messages, calendar events and notes. Making use of these files is a simple way to improve the response time of Outlook.
Double-click the "Outlook 2010" shortcut icon on your desktop and click the "File" button, and then select the "Account Settings" link from the menu. Click the "Data Files" tab and the "Add..." button. The New Outlook Data File window appears.
Click the "Office Outlook Personal Folders File" and the "OK" button. Select a location to save the new file and then type the name of the PST File. Type a password for your file, if necessary, in the password box, and type it once more to confirm. Click the "OK" button.
Drag and drop each message that you would like to store into this PST folder, which is located right under "All Mail Items" in your current inbox.
Tips & Warnings
- You can also back up your PST files before you create a folder. Do this by clicking the "File" button and selecting "Backup" from the menu. Click the "Options" button and select the PST files you want to back up.
- There are other ways to make Outlook run faster if you don't get the desired results with PST files, like making sure the folder displayed when the program starts up is not too full, limiting add-ons, and automatically archiving old messages.