Information about the characters that you cannot use in site names, folder names, and file names in SharePoint

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Article ID: 905231 - View products that this article applies to.
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INTRODUCTION

This article lists the characters that you cannot use in the following names in Microsoft SharePoint:
  • Site names
  • Folder names
  • Server names
  • File names

More information

For more information about the underscore character (_) in server names, click the following article number to view the article in the Microsoft Knowledge Base:
325192 Issues after you install updates to Internet Explorer or Windows

Site names, subsite names, or site group names

  • You cannot use the following characters anywhere in a site name, in a subsite name, or in a site or Active Directory group name:
    • Tilde (~)
    • Number sign (#)
    • Percent (%)
    • Ampersand (&)
    • Asterisk (*)
    • Braces ({ })
    • Backslash (\)
    • Colon (:)
    • Angle brackets (< >)
    • Question mark (?)
    • Slash (/)
    • Plus sign (+)
    • Pipe (|)
    • Quotation mark (")
  • You cannot start a site name, a subsite name, or a site group name with an underscore (_) character or with the period (.) character.
  • When you create a site name, a subsite name, or a site group name, you cannot use strings that were already used to name managed paths.
  • You cannot use the period character consecutively in the middle of a site name, a subsite name, or a site group name.
  • You cannot use the period character at the end of a site name, a subsite name, or a site group name.

Folder names

  • You cannot use the following characters anywhere in a folder name or a server name:
    • Tilde
    • Number sign
    • Percent
    • Ampersand
    • Asterisk
    • Braces
    • Backslash
    • Colon
    • Angle brackets
    • Question mark
    • Slash
    • Pipe
    • Quotation mark
  • You cannot use the period character consecutively in the middle of a folder name.
  • You cannot use the period character at the end of a folder name.
  • You cannot start a folder name with a period character.
  • If you use an underscore character (_) at the beginning of a folder name, the folder will be a hidden folder.

File names

  • You cannot use the following characters anywhere in a file name:
    • Tilde
    • Number sign
    • Percent
    • Ampersand
    • Asterisk
    • Braces
    • Backslash
    • Colon
    • Angle brackets
    • Question mark
    • Slash
    • Pipe
    • Quotation mark
  • You cannot use the period character consecutively in the middle of a file name.
  • You cannot use the period character at the end of a file name.
  • You cannot start a file name by using the period character.
  • If you use an underscore character (_) at the beginning of a file name, the file will be a hidden file.
  • In addition, file names and folder names may not end with any of the following strings:
    • .files
    • _files
    • -Dateien
    • _fichiers
    • _bestanden
    • _file
    • _archivos
    • -filer
    • _tiedostot
    • _pliki
    • _soubory
    • _elemei
    • _ficheiros
    • _arquivos
    • _dosyalar
    • _datoteke
    • _fitxers
    • _failid
    • _fails
    • _bylos
    • _fajlovi
    • _fitxategiak

Properties

Article ID: 905231 - Last Review: March 25, 2014 - Revision: 10.0
Applies to
  • Microsoft Windows SharePoint Services 3.0
  • Microsoft Windows SharePoint Services 2.0
  • Microsoft Office SharePoint Server 2007
  • Microsoft Office SharePoint Portal Server 2003
  • Microsoft SharePoint Foundation 2010
  • Microsoft SharePoint Server 2010
Keywords: 
kbtshoot kbinfo KB905231

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