Selling Windows 10 professional OEM activation Codes. Those codes are Retail - guarantee lifetime, not from MSDN account. Codes from MSDN account are not good and may be blocked after a period of time when the account ends.
My Skype: tripatrick (Huan Patrick). Thanks 👍🏻.
I would like to have a vouch.
if you prefer to have a vouch, i can give you a used code of windows 10 Professional OEM to check with Microsoft supporter. (y). then you'll know its property - OEM or MSDN
A used key ? seriously ? I can provide you with hundreds of OEM used keys, that is no proof, and just saying it destroyed any credibility you may have had (at least for me).
Also the key should stay functional for at least 3 months, so a vouch can only say the key is active now, not that it will stay active beyond that.