The computer name {0} contains nonstandard characters. A computer name can contain a combination of the following standard ...

The computer name {0} contains nonstandard characters. A computer name can contain a combination of the following standard characters: letters (a-z,A-Z), numbers (0-9), and hyphens (-). If your environment does not have a DNS server, using nonstandard characters in the computer name can affect the ability of this computer to interoperate with other computers.