You will need an ISO file for Windows 7 Ultimate (Build 7600). Use a tool like Rufus to create a bootable USB drive.
Before searching for a product key or starting the installation, ensure your hardware meets the 64-bit requirements: 1 GHz or faster 64-bit (x64) CPU. RAM: At least 2 GB. Hard Disk Space: 20 GB of free space. product key windows 7 ultimate 64 bit build 7600 install
Follow the on-screen prompts. Choose your language, time, and keyboard preferences. You will need an ISO file for Windows