Boot Windows 98 From Usb _best_ Direct
For retro gaming or hardware testing, use Method 1 (USB as installer). For a portable Windows 98 on USB, use Method 2 but expect stability issues unless your PC is from the Pentium III or early Pentium 4 era.
Modern graphics cards (NVIDIA RTX, AMD Radeon) do not have drivers for Windows 98. The installation might complete, but you will be stuck at 640x480 resolution with 16 colors. boot windows 98 from usb