: Navigate to the Help menu in the top toolbar. Unlock/Register : Select Unlock/Register MathType .
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To use MathType 6.9 or the more recent version 7, you need a valid product key : Navigate to the Help menu in the top toolbar
: If you already own a license for MathType 7, you can activate it by opening the MathType tab in Word and selecting Unlock/Register under the Help menu. product key of mathtype 69