Here are better solutions for achieving a "portable legacy Windows environment":
In the modern era of IT, portability is king. We carry powerful computers in our pockets, and cloud desktops follow us across continents. But long before the term "Digital Nomad" existed, Microsoft was laying the groundwork for a truly portable Windows experience. Two names stand out in this lineage, though they were never officially meant to coexist: and Windows XP . windows to go windows xp