Windows Doesn’t Allow You To Create Folder Named ‘CON’, PRN, NUL, etc. Here Is How to Create It.
CON, PRN, AUX, NUL, COM1, COM2, COM3, COM4, COM5, COM6, COM7, COM8, COM9, LPT1, LPT2, LPT3, LPT4, LPT5, LPT6, LPT7, LPT8, and LPT9.
NUL, AUX, CON, COM1-4, LPT1-3, and PRN
are reserved words used for DOS Devices
These are specified in IO.SYS and date back from the early MS Dos days. Here is a brief list:
CON – Console; combination of keyboard and screen to handle input and output
AUX – First serial communicationport
COM1 – Second, Third, … communicationport
LPT1 or PRN – First parallel port
NUL – Dummy port, or the “null device” which we all know under Linux as /dev/null.
How to create folder of these name
press and hold alt key type 255 release alt then type name, Which you want to create folder like con then Enter