To use this here, remove one device

Whenever i try to open minecraft windows 10 this shows up, saying "To use this here, remove one device, i literally have no device linked to my microsoft but my pc, i only have one device, this bug is so disappointing, i'm trying to play with my friends, but i just can't, i haven't try windows 10 edition with my friends, please fix this, this is a very big issue.....