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How to Check Windows 10 Key Validity
I just bought a discounted Windows 10 Pro key via Guru3D as recommended by some here. This key is for future use so I want to check it is valid before installing Windows 10. I tried the commonly used utility MicrosoftPIDChecker but this reports - Error: The specified key does not work with the loaded PKeyConfig file. Other retail Windows 10 keys I have are correctly reported by this utility.
Is there another way of check the validity of the key since the MicrosoftPIDChecker report is unclear?