Windows XP was never designed to boot from a USB storage device. By default, the Windows XP installation process drops the USB controller drivers mid-boot, resulting in a with the error code STOP: 0x0000007B (Inaccessible Boot Device).
Now, for the main event. There are two primary schools of thought for this operation: the image deployment method (harder but cleaner) and the direct installation method (messier but sometimes works). We will detail the more common and documented approach based on community research. windows to go windows xp