Missing categories when transferring to Outlook on new machine

I got a new PC with Outlook 2007 on it. I copied the pst-file from my old machine running Outlook 2003 to the new one but now I’m missing all my categories in Outlook.
How do I get them to into Outlook 2007?

Actually, your categories are still there. Outlook 2007 stores the categories into the pst-file as opposed to previous version of Outlook which stored them in the registry.

To build the new category list in Outlook 2007, you can right click on the top of the mailbox and choose Properties. Here you’ll see a button called “Upgrade to Color Categories…”. When you press this button, Outlook will look through the entire mailbox for categories and when found, it will add them to the categories list.

You can also start Outlook with the /remigratecategories switch to achieve the same result;
Start-> Run; outlook.exe /remigratecategories

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