Did you use the HPE or VMware ISO? What happend of you try a different version? A lots or unknown Password can be solved by using a gparted ISO. But it tooks the same time as re-installing a unconfigured ESXi.

About versions.... 6.7 runs out of support last october. The G10 should be certified to run vSphere 7 so you should this one.

Regards,
Joerg