Partitioning

Windows XP supports mbr formatting with either fat32 or ntfs partitions up to 2tb. There is a disc management utility in the microsoft management console. (Run, “mmc”).

With Paragon GPT Loader Windows XP supports drives larger than 2TB, only internal drives, but not for the OS drive. https://www.paragon-software.com/technologies/gpt-loader/ It's included in older versions of Paragon Hard Disk Manager Professional such as 11.