Windows 7 does not have native USB 3.0 drivers, which are common on modern motherboards. If your keyboard/mouse stop working during setup, you must pre-inject USB 3.0 drivers into the ISO using tools like the ASRock USB Patcher or DISM command-line tool. Summary of Essential Requirements Requirement Windows 7 64-bit (x64) Partition Style Boot Mode UEFI (CSM Enabled) USB File System FAT32 (For Rufus)
Whether you are installing to an or an older SATA drive If you have a valid Windows 7 product key Download Windows 7 Uefi Iso
If you can tell me you are trying to install this on, I can offer more tailored advice for drivers and BIOS settings . Windows 7 does not have native USB 3