Win 8/8.x is missing the initial grace period, if not activated it's in Notification, so a Rearm makes no sense anymore . Simply use KMS activation.
I was wondering if he was relating to that info (in reference) .... many do and think REARM is possible... so basically I recommend 1. Buy a Genuine Key or 2. USE KMS Activation and set to redo every 30 days... Thanks for the ..explanation...