Can you create a folder named “com1”, “nul”, “prn” ,”lpt1″,“com2″etc. in windows ?
Usally the answer comes no,Yes most off us even don’t even think about it,when we create a new folder or any file and try to rename it to folder like con,com1, nul,prn In Windows XP the folder name automatically changes back to “New Folder”, Where as in Windows 7/Vista you get an error message “The specified device name is invalid”.
make con file
What is the reason for this?
this means that these names represent the internal devices on the compter in windows system so we cannot create folders with the above names like com1,com2 etc.
* Below is a list of default device driver names associated with the problem why we can’t do that directly.
CON Keyboard and display
PRN System list device, usually a parallel port
AUX Auxiliary device, usually a serial port
CLOCK System real-time clock
NUL Bit-bucket device
A:-Z: Drive letters
COM1 First serial communications port
LPT1 First parallel printer port
LPT2 Second parallel printer port
LPT3 Third parallel printer port
COM2 Second serial communications port
COM3 Third serial communications port
COM4 Fourth serial communications port
Now question comes,
Can we still create folder name “com1”, “nul”, “prn” ,“lpt1?,“com2? ,“com2? etc in windows ?
Step1: Go to command prompt( Press windows+R key)
Step2. Type CMD then enter
Step3: type D:
Step4: then type md \.D:con in prompt if you want to make con folder in D: drive
likewise you can make “prn”, “nul” “com1″, “com2″, “lpt1″ etc folder.
How to delete folder made by this process?
To delete the folder
Use the following command
NOTE: The folder which you made by this process can only be deleted from the command prompt(CMD).You cannot remove it by just right clicking and selecting delete.
Note: Acording to MS