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  2. Microsoft Product Activation - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Product_Activation

    The verification data is also based on the product key entered during activation. In some cases, the product key is checked against a list of known illegally distributed keys. [27] Certain retail copies of Windows and Office sold in certain countries classified as emerging markets have geographical activation restrictions, which only allow the ...

  3. Product activation - Wikipedia

    en.wikipedia.org/wiki/Product_activation

    Product activation is a license validation procedure required by some proprietary software programs. Product activation prevents unlimited free use of copied or replicated software. Unactivated software refuses to fully function until it determines whether it is authorized to fully function. Activation allows the software to stop blocking its use.

  4. Product key - Wikipedia

    en.wikipedia.org/wiki/Product_key

    Product key on a Proof of License Certificate of Authenticity for Windows Vista Home Premium. A product key, also known as a software key, serial key or activation key, is a specific software-based key for a computer program. It certifies that the copy of the program is original. Product keys consist of a series of numbers and/or letters.

  5. Office Genuine Advantage - Wikipedia

    en.wikipedia.org/wiki/Office_Genuine_Advantage

    Office Genuine Advantage ... This is different from Microsoft Product Activation in that activation is required to use the software and is enforced at the software ...

  6. Microsoft Office 2021 - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Office_2021

    Microsoft Office 2021 (third release codenamed Office 16) is a version of the Microsoft Office suite of applications for the Microsoft Windows and macOS operating systems. It was released on October 5, 2021. [ 6 ]

  7. Microsoft Office - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Office

    It was the first version to require Microsoft Product Activation worldwide and in all editions as an anti-piracy measure, which attracted widespread controversy. [146] Product Activation remained absent from Office for Mac releases until it was introduced in Office 2011 for Mac.