Microsoft has a support document that was updated recently with helpful information to troubleshoot performance issues in Outlook 2007. For my clients Outlook 2007 has been stable and speedy but keep this collection of tips in mind if you experience slow performance, lengthy delays before Outlook responds (either on startup or during normal use), or program crashes.
Personally, I’ve seen these things cause performance problems most frequently:
- Slow computers – either insufficient memory or slow hard drives
- Mailbox stores that are over 2Gb (performance begins to be affected) or over 4Gb (performance gets pretty dicey)
- Third party addins that cause odd side effects
- Lengthy mailbox checks when Outlook starts (which apparently can largely be avoided by leaving Outlook running when we shut down Windows, so Windows can completely manage the process of closing the program. Weird, eh?)