Often includes "Royale Noir" or "Embedded" themes pre-installed to modernize the UI. List of latest supported Windows XP SP3 software - GitHub
Reports highlight the use of custom drivers to enable XP on modern systems, including support for SATA/AHCI , USB 3.0 , and even NVMe SSDs . Windows XP Professional SP3 Dec 2021
By late 2021/early 2022, community reports confirmed that XP's official web activation servers were increasingly unreliable, leading to the use of offline activation tools that reverse-engineered the original phone-based algorithm. Typical "2021 Build" Specifications including support for SATA/AHCI