Hi pals, we all know that we cant create folders with name con, aux, lpt1, lpt2, lpt3, lpt4, lpt5, lpt6, lpt7, lpt8 and lpt9 in windows. Because These are the Keywords in program so that it can not be used as variable names(i.e folder names). But here is a trick to create Folder named those keywords but these folders are created like undeletable and unrenamble using DOS prompt. Steps to Follow Undeletable and Unrenamble Folders 1.Open Run dialogue box.(Win key + R) 2.Type cmd and Enter. 3.Goto Path or Drive that you wish to create Folder.(in command line) 4.Then type "md con\" (without quotes) and Enter Your Folder is ready now that you cant delete or rename. What to do if it remains like that and cant delete,here is the solution Steps to Remove Undeletable and Unrenamble Folder 1.In that Path only type "rd con\"(without quotes) and Enter. Problem solved,Folder Deleted. Note: You can use any of the keyword which given above in pla...