I completely agree, however Windows desktops are in particularly bad shape in this regard as they are the result of continuous evolution from the very first version of DOS with an attempt to keep as much backwards compatibility as possible every step of the way. Even the modern NT-based versions of Windows brought over a lot of bits from previous OSes. They were not a completely "clean" rewrite. For example, the Windows 3.1 program manager was still available on 32-bit versions of Windows XP and to this day you still can't name a file any of the following on Windows for compatibility with DOS special file names: CON, PRN, AUX, NUL, COM0, COM1, COM2, COM3, COM4, COM5, COM6, COM7, COM8, COM9, COM¹, COM², COM³, LPT0, LPT1, LPT2, LPT3, LPT4, LPT5, LPT6, LPT7, LPT8, LPT9, LPT¹, LPT², and LPT³. In fact you can't even name a file any of those with an extension, such as CON.TXT.