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Outlook runs slowly

This article was been published more than a year ago. The information may be outdated.

I was contacted by a user telling me that Outlook was running slowly on his computer, especially when switching between Mail and Contacts, etc. He also reported that when he had Outlook open, he didn’t get the speed he was supposed to while surfing the web.
 
The problem was simply that Outlook was set to check with the Exchange Server constantly. To avoid this problem, you need to turn Cached Mode on. Here’s how:
 

  1. In Outlook 2003, click Tools -> Email Accounts.
  2. Click the second option (View or Change Existing Email Accounts) and click Next.
  3. Highlight your Exchange account and click Change.
  4. Make sure the checkbox for ‘Use Cached Mode’ is checked and click Next.
  5. Click Finish.

 
The procedure is the same in 2007, but for step one click on Tools -> Accounts and you may disregard step two.

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