Can’t upgrade from Office Small Business 2003 to Professional 2003 Share on Facebook Post on reddit Tweet on Twitter Share on LinkedIn Home › Forums › Office › Office XP / 2003 General Issues › Can’t upgrade from Office Small Business 2003 to Professional 2003 This topic has 7 replies, 4 voices, and was last updated 13 years, 6 months ago by volleygeek. Viewing 1 post (of 1 total) Author Posts volleygeekMember Feb 06, 2007 at 1:35 pm #121028 I have Office Small Business 2003 installed. I wanted to upgrade to Professional 2003 for some of the additional features. Purchased the upgrade disk, but when I try to install it tells me it can’t find a previously owned version. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.