Different platforms have different limitations. In order to play nice with all devices in an organization, some limits have been set on how you can name Files, Folders and Shares.


The following characters can not be used: 

  • / - Slash
  • \ - Backslash
  • : - Colon
  • * - Asterisk
  • ? - Question mark
  • " - Double quotation mark
  • < - Less than
  • > - Greater than
  • | - Pipe
  • & - Ampersand


You can read more about filenaming on Wikipedia.