How to remove ESXI 7.0 and install Windows Server 2016 on Poweredge R630

[JZ480]

I am new to working with servers and bought a server (Poweredge 630) used to learn. This server came with VMware ESXI 7.0 installed and dont know the root password. I want to remove VMware ESXI to install windows server operating system, but I dont have any idea on how to remove ESXI from the server. Could someone of you help please

[#2]

You can boot from the windows installation media. If you're having issues with that then another option is to change the boot order in cmos setup.