It's pretty easy.
Your thunderbolt display would require a PC that has native thunderbolt support on the motherboard.
Assuming the PC is running Windows, then you would also check that Windows has drivers for the display.
And, with those requirements, you just plug the thunderbolt cable to the thunderbolt port on the PC (an adapter won't work, AFAIK, needs to be plugged directly into a thunderbolt port). No thunderbolt port on the PC, no thunderbolt display.