Upgrading Quicken Home 2010 to Quicken 2011

Apologies if I'm not in the correct category. My Quicken Home 2010 Licence Key has expired & I've been advised to upgrade (free) to Quicken 2011 and have been sent an email download link with IKC. When downloading Quicken 2011 I get an error message that reads 'This app has been blocked for your protection. an administrator has blocked you from running this app. For more information contact the Administrator'. I would appreciate any advice here please since calling Reckon on their 1300 number has given me no help at all, they have directed me here.