Why can’t we create a folder named CON in Windows???

Nobody can create a FOLDER anywhere on the computer which can be named as “CON”.

This is something pretty cool…and unbelievable… At Microsoft the whole Team, including Bill Gates, couldn’t answer why this happened at first!

TRY IT NOW !!

In MS-DOS, several special “device files” were available to aid in performing certain tasks, such as clearing the screen or deleting extraneous output from a program. In order to maintain backwards-compatibility, all versions of Windows up to and including Windows 7 will refuse to allow you to create a file with these “reserved” device file names. The following file names are reserved:
CON

CON, incidentally, was a device file used to capture whatever was printed onscreen.
let me tell you a small secret you can’t even create a folder named PRN, AUX, NUL and many others like..
PRN

AUX

NUL

COM1

COM2

COM3

COM4

COM5

COM6

COM7

COM8

COM9

LPT1

LPT2

LPT3

LPT4

LPT5

LPT6

LPT7

LPT8

LPT9
If you try creating a folder with any of these names, the name automatically changes back to the default “New Folder”. And this is what has caused the confusion. Instead of automatically renaming the folder, had an explanatory warning message popped up.
You can actually create a folder named CON !!

There is actually a way to create a folder named CON, or any other name from the above list of reserved keywords. This can be done through command prompt. But it is advisable not to do so, as it might result in your system becoming unstable.