Recently i have got the product key of the Microsoft Office 2010 Professional. I was using an Office 2010 Beta for 1 month successfully and activated it as well. But when i tried to open the Powerpoint 2010 then i got the messages saying that the this product is not activated. I tried to activate then by copy pasting the activation key from email MS sent after download but PowerPoint 2010, Word 2010 says that the product key is invalid. How can the same key became invalid after some time? Do i have to download the Beta version again following by the procedure of an Activation? Is there any other way to fix this problem?
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