You can help protect yourself from scammers by verifying that the contact is a Microsoft Agent or Microsoft Employee and that the phone number is an official Microsoft global customer service number. There was no issue at the time and I'm pretty sure I went through the activation procedure without a hitch at that time. I haven't needed to use it again until recently and went through the usual process of creating and saving a Word file in a folder in the Document Library. On trying to retrieve it, I am asked for the Product Key in order to allow installation of "Out of Box" apparently which I duly enter only to be told it isn't a Microsoft Office key. I have repeatedly checked that the character key is correct. It was correct when I installed the Office suite! I don't understand why I am again required to enter the key I am also unable to open some important attachments sent to me by a colleague with the same request coming up for the Product Key. I can see on various blogs that other users have had similar issues. It seems impossible to speak to anyone at Microsoft as the Activation by Phone service is only a recorded message asking for an Activation Code which I don't have a and don't need as the Help section of the menu would apparently tell me to activate if I hadn't already done so - it doesn't.
When I was trying to install the system, I was required to enter the product key. It is true for all Microsoft products. Then just activate your Windows 10 key with the purchased product key. Hi, there, as for your question, you definitely need to buy a product key to activate your Windows 10 key. It is also one of the leading and most successful products from Microsoft yet. Microsoft Office Product keys are given below.
2006;18: 30093051. pmid:17052157 Beer RD, Gallagher JC. Evolving Dynamical Neural Networks for Adaptive Behavior. Adaptive Behavior. 1992;1: 91122.
Microsoft Office 2010 professional product key(after activation failed)