This undeletable folder must be made using Command Prompt.
It can only be deleted using Command Prompt.

Steps to implement this hack :
1.Go to cmd.
2.Change to the directory that you want.
3.Assume i change to D:
4.So,in Command Prompt,type D: and [enter].
5.Type in this command “md \lpt1\\” without quotes and press enter.
6.The folder will now in your D:
7.Go and try and delete or rename it,you cannot do anything to it.
There are still many names that you can use to name the folder:
-lpt1 until lpt9
-CON
-AUX
To delete it:
1.Go to Command Prompt again.
2.Navigate to the directory.
3.Type in …

Internet Explorer is the most widely used internet browser even today when Mozilla Firefox, Google Chrome and Opera are catching up fast. I usually use all the browsers for my work. There was a task assigned to me that I had to find a way to password protect Internet Explorer such that when we want to browse the internet, it asks for a password before continuing. I have found a way and want to share it here.
Basically Internet Explorer 8 has got many enhancements and one enhancement is its Content …