Step one , set up your OVH.com account. Login to the Web Control Panel and Order a Server.
Once your server is provisioned and setup (times vary based on type and location) you can go into the Web Control Panel and install your ESXi image. Below are the screen shots for installing an ESXi image. After it is loaded you will receive an email with login information.
vExpert 2017, VCIX-NV, VCP6-DCV, VCP6-NV, MCSA, MCTS