To get a full conversion, you usually need a combination of a visual theme (msstyles) and utility apps that modify the taskbar and Start menu. How To Make Windows 11 look like Windows XP
Transforming Windows 10 or 11 into a retro Windows XP environment is a popular way to combine nostalgic design with modern security and performance. While Microsoft does not provide a native "XP mode" for modern OS aesthetics, the community has developed several reliable, free methods to achieve this look. windows xp skin pack free download