Synonymous with "Windows computer." A Windows desktop can be a desktop computer or laptop computer. However, a "Windows desktop computer" is indeed a desktop computer and not a laptop. See Windows and desktop computer.
"Windows desktop." YourDictionary, n.d. Web. 17 August 2018. <http://www.yourdictionary.com/windows-desktop>.
Windows desktop. (n.d.). Retrieved August 17th, 2018, from http://www.yourdictionary.com/windows-desktop