was there any features that was removed?
Yes, MS-DOS commands and the POSIX & OS/2 subsystems, to name a few.
Windows XP
Some of the programs and features that were part of the previous versions of Windows did not make it to Windows XP. Various MS-DOS commands available in its Windows 9x predecessor were removed, as were the POSIX & OS/2 subsystems.

what are the main features of windows xp A more intuitive user interface, improved hardware support, and expanded multimedia capabilities. who produced this system? Microsoft. when was it released? Manufacturing release on August 24, 2001, and retail sale on October 25, 2001. what is aforementioned company that produced this system? It is an American multinational technology company that develops, manufactures, licenses, supports, and sells computer software, consumer electronics, personal computers, and related services. name few of its best known software products? Microsoft Windows, the Microsoft Office suite, and the Internet Explorer and Edge web browsers. who are the board of directors? As of July 2020 they are Satya Nadella, Reid Hoffman, Hugh Johnston, Teri List-Stoll, Sandi Peterson, Penny Pritzker, Charles Scharf, Arne Sorenson, John W. Stanton, John W. Thompson, Emma Walmsley and Padmasree Warrior. when was the operating system (mentioned at the start) developed? Late 1990s. what are its updated features? New licensing model and product activation system.
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Windows XP [SEP] Removed features
Some of the programs and features that were part of the previous versions of Windows did not make it to Windows XP. Various MS-DOS commands available in its Windows 9x predecessor were removed, as were the POSIX & OS/2 subsystems. In networking, NetBEUI, NWLink and NetDDE were deprecated and not installed by default. Plug-and-play–incompatible communication devices (like modems and network interface cards) were no longer supported. Service Pack 2 and Service Pack 3 also removed features from Windows XP, but to a less noticeable extent. For instance, support for TCP half-open connections was removed in Service Pack 2, and the address bar on the taskbar was removed in Service Pack 3.