802.1x and forcing a pc to present a specific cert when it's not joined to the domain with ClearPass

Does anyone know how I can force a Windows 10 machine to present a specific cert that I choose when doing machine auth with 802.1x? I've tried to put the certificate in the computer cert store under the Client Authentication Issuers section. I've tried to select the cert in the NIC properties and selecting "When Connecting, use a certificate on this computer" and selecting the cert I want. But neither of them seem to force the laptop to present the cert to clearpass. The laptop still presents a generic Microsoft cert.