I’ve been a user of Office 2010 since I received the invitation for the Technical Preview. So when I heard that I could download the Beta version of Office Professional Plus 2010, I checked TechNet right away and downloaded the 64-bits version (I was also using the 64-bit Technical Preview version).

Because I had Outlook configured with Exchange, etc I tried to ‘upgrade’ my Technical Preview version, but that one failed. A message appeared telling me that I had to uninstall all the previous versions of Office 2010 before I could install the beta version. So I did…

Office 2010 Beta was installed in a few minutes, but when I launched Outlook I ran into some issues (probably because of the Technical Preview key that was still in place?) with the product key. The following message appeared :

When I pressed the Change Product Key button to enter the Beta key I received from TechNet nothing happened! I found out that when I start Excel (or maybe any other Office app) and clicked the Change Product Key a change product key screen appeared (see image below) and I was able to activate Office 2010!

 
Now I could enter the key and click Continue to apply the changed product key. Strange enough Office 2010 didn’t go online and activate immediately, but when I restarted Outlook the activation wizard appeared and when I tried to activate Office 2010 it just activated fine!

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