I've bought a brand new Dell and Outlook continually freezes on it. It is impossible to work on it this way.
"Dell" is the keyword here. They pre-install their hardware with their custom tool named "Outlookaddin" (by Cyberlink).
Uninstall this and check performance again. Should be lots better ;-)
The downside of disabling this add-in is that when you are using the MediaDirect boot option, the Contacts section of the Instant Office will not work or will not display your Outlook contacts.
For more info about MediaDirect see; Dell MediaDirect Frequently Asked Questions (FAQ)