Windows 8.1 Retail – Removing your Windows Product Key and Activation via the Command Prompt

Right click the Start button or press [Windows] and [x]. Select Command Prompt (Admin)

Product Activation Removal

 

Type in

slmgr.vbs /upk
Product Activation Removal 2

Your product key will be uninstalled.Product Activation Removal 3

You may verify the removal by looking at the system properties:

System Properties 2

 

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