why can't i create a folder with "con" name?

Hi Sara Mirza,

As explained above about the use of ALT + 255 :

That does not create a folder named con. Instead it creates a folder named <back space>con

as ALT + 255 is a <back space>. So it looks like con yet isn't and can cause issues installing

programs, sharing data, and others when the <back space> is not used prior to the name.

Hope this helps.

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Rob Brown - Microsoft MVP <- profile - Windows Expert - Consumer : Bicycle <- Mark Twain said it right.

Close but not exactly right. You are quite correct that prepending 0x255 is only a kludge and does not actually create a folder named "con". However, you are incorrect about the backspace, which is 0x08. You are probably thinking of 0x127 which is delete, though it is rarely rendered as a control character, it often shown as a caret, colloquially called a “house” characterbecause of its shape.

Moreover, the character at codepoint 0x255 depends on the active codepage. In North America, most Windows systems these days will render it as a blank in some contexts, but as ÿ in most Unicode-aware contexts.

No no no! Just don't do so!!

It's	very	important	not	to	do	it!

I wouldn’t says it’s important to not do it, and your tone is unnecessarily alarmist. At worst, it makes the folder and its contents slightly more difficult to access (okay, at worst it can lead to losing the files, but that’s really extreme and only likely if the folder is on a removable media that someone connects to an old system that deletes them or something).

That said, it is much easier and safer to just use another name; pull out the thesaurus and find a synonym.

Assalam-o-Alaikum

You can create folder with name = Con .. Just press alt+255 then write folder name it will be created .lolz

Just use ALT+NUM255 + "con" + ALT+NUM255

That’s even worse than Assalam’s answer; yours is not only still wrong, but adds two spaces to the name (or ÿ’s or whatever glyph is at codepoint 0x255 in the active codepage).

Assalam-o-Alaikum

You can create folder with name = Con .. Just press alt+255 then write folder name it will be created .lolz

Nope, that is not the same thing. That might look like con, but it is not. It has a blank space before the name, and that is only if you are using certain codepages; with some codepages it will be named ÿcon or something else.