Set your hardware to boot from the USB drive.
Finding the correct ISO depends on whether you are looking for an evaluation version, a retail copy, or a volume licensing image. 1. Microsoft Evaluation Center windows server essentials iso
This version was highly popular for its "Essentials Experience" role, which provided a simplified dashboard for managing users and backups. Windows Server 2019 Essentials Set your hardware to boot from the USB drive
Evaluation versions can usually be converted to full retail versions using a valid product key via Command Prompt (DISM). 2. Visual Studio Subscriptions (MSDN) a retail copy
Use a tool like Rufus to burn the ISO to a USB drive (at least 8GB).