In all versions of Windows, we are unable to rename a file or a folder name as `CON` without third-party file renaming software. Trying to do this in Windows 7 results in an error:
>
The specified device name is invalid.
Trying to save a file as `con.txt` in Notepad leads to a similar error:
>
This nom de fichier is reserved for use by Windows.
Choose another name and try again.
Pourquoi ne peut-on pas we name a file or folder `CON` in Windows?
Pourquoi ne puis-je pas name a dossier or fichier 'CON' in Windows?
Re: Pourquoi ne puis-je pas name a dossier or fichier 'CON' in Windows?
"con" is the name of a system I/O device, the console.
- con
- nul
And a couple others, Je pense.
In the old days it was common in DOS to create a file (and I still do this occasionally) with:
```
C:\>copy con foo.txt
I'm typing some text here.
^Z
1 file(s) copied.
C:\>
```
- con
- nul
And a couple others, Je pense.
In the old days it was common in DOS to create a file (and I still do this occasionally) with:
```
C:\>copy con foo.txt
I'm typing some text here.
^Z
1 file(s) copied.
C:\>
```