Worked perfectly on an installed Windows 10 Pro! Just copy paste activation code and done.

Ich wahr zuerst skeptisch und dachte das es fake ist.
Hat alles super geklappt.

This is actually a fuking retail key
you can check from your cmd and type slmgr/dli
bout one from another source and it was a Volume but claimed to be retail.
good shit man.

Windows 10 pro key - got it fast and worked fine

Autant pour moi.
Après mise à jour de mon Windows.
La clé fonctionne parfaitement.

Je recommande