Step 1. First of all, go to Start and then Click on Run. Now type cmd & hit enter (Command Prompt will get opened).
Step 2. Always remember that you cannot create any undeletable & unrenamable folder in your root directory of storage. Which means these folders can’t be created on the drive in which your Windows is being installed. So select the drive by typing D:, E:, F: and then hit enter.
Step 3. Type md lpt1\ and hit enter (md – make directory). Now open the directory and you will see the folder created by name con there. You can store your precious file inside that folder.
Step 4. Now let’s try to delete that folder or rename that folder. Every time you try to do it, Windows will show the error message there. This folder now can’t be deleted and renamable by this way.
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