Tips for Creating an Undeletable Folder on Windows

Not only can you create an undeletable folder, but you can’t create this folder on Windows if you don’t know how to

Today AnonyViet will teach you a little trick, you can use this trick to quiz your friends, or bet on free coffee.

First, tell your friends, create a folder named Dad outside Desktop

Then create folder named child located in folder Dad

Of course, it’s not easy to set it, so it’s new, you will show a message not to give it a name like this:

Do you know why, because Microsoft has specified some names that cannot be given to Folders, including the list below:

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

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Create a folder named CON

To name the folder with the list above, follow the steps below

Step 1: Open Command Prompt (CMD), Click the button in the bottom left corner of the screen Start -> Run or get CHEAP Windows keystrokes

Step 2: Type command: cd Desktop // move to Desktop folder

Step 3: Type command: md Father // command to create directory named Father

Step 4: Type command: cd Father // move inside the parent directory

Step 5: Type command:

Please see the picture below for visualization

Now go to the Parent folder on the Desktop, you will see a Child folder

Delete the CON folder

If you want to Delete this Subfolder, you can’t delete it in the usual way, you still have to use the command

Step 1: Open CMD

Step 2: Type command: cd Desktop/father //move into parent directory

Step 3: Type command:

See the picture:

It’s over, hope you guys can earn some Free coffee, remember to share it with AnonyViet

Tip: You can pre-create the folder Child then challenge your friends to delete that folder if you don’t know how to use CMD, it will be a bit difficult 😆