Each Microsoft product key is licensed for one end user / one device only.
Reusing, sharing, or reselling the same key to multiple customers is a
serious violation of Microsoft licensing terms and
Redtrex Technologies' reseller policy.
Misuse may result in:
Immediate license deactivation, even on already activated devices
Loss of product functionality and activation errors
Microsoft account enforcement actions
Permanent reseller account suspension with no refund or replacement
Activation activity is monitored. Abuse will be acted upon without notice.