format a ntfs file system

Sorry, but we need more information than that. Can you give us the specs on the computer and tell us what OS you have on it please?

You said you bought a new system. You said it has an NTFS file system. Why do you need to format it? If it's new, it has already been done and the OS has been installed. If you need to add another drive and format it, you let Windows do it, assuming that's what OS you have. If you want to start over on the drive that's in there by putting on a new OS, you let the setup program do it.

So, please explain more about what you want to do and why.

And why aer you trying to format a new computer? Is it used???

What OS are you trying to install?
What utility have you tried to do the format?