Windows 7/Hardware

Windows 7 is designed for hardware from around 2004 to 2016. Later hardware needs slipstreamed drivers or may not work at all.

USB 3
There are many utilities often from OEMs to slipstream USB into the installation USB/DVD. Many modern motherboards require USB3 even on "USB2" ports.

USB 4/Thunderbolt
To be added

NVMe
NVMe support can be slip streamed like a hardware RAID card can be.

UEFI
UEFI is not fully supported but can be worked on. Using Legacy/CSM mode is recommended but newer CPUs are dropping support for CSM.

GPUs
NVIDIA has dropped support on their Quadro range of cards for Windows 7.

SSE2/3
Newer patches for Windows 7 require SSE2. Many programs including Steam and Goofle Chrome require SSE3.