When I upgraded to Windows 8 from Windows XP, everything worked well except Microsoft Outlook. It required me to activate its license and failed on every attempt I made at this. This may be due to it trying to write data to a folder that Windows 8’s enhanced security was blocking. Windows 7 users experience the same problem with Outlook’s license activation.
The solution is very simple. You need to run Outlook as an administrator, i.e. right click on the Outlook program icon and select “Run as administrator” from the list of options. Even though I was logged in as administrator, I still had to do this step to force Windows to run Outlook as an administrator. Outlook was then able to activate its license with Microsoft and then ran without a red title bar in the application that indicated a problem.