Book traversal links for Upgrading doesn't work (Windows Vista) ‹ Why are some texts larger than others? (Windows 7) Up Why are some buttons black or missing? (Windows XP) › Printer-friendly version If you right-click on the shortcut or the MacaosEnterprise.exe and select "Run as Administrator". Upgrading should work fine. You only need to do this when you want to run the upgrader.