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Can you create a folder with names con ,aux , nul ,lpt1 ,com1 or file name as "con".

Now you tell me how can we as it was global format..

It was created as default....

But  if you want to make a folder name con,aux,nul,lpt1,com1...

Then what u have to do that i can tell u...

Just   type  the name you want make the folder name(ex: con,com1,aux,nul,lpt1) then press ALT + 0160(from numpad) and you have got your folder with the name "CON".