One possible way boot your windows into safe mode and try to format there to any accessible format. If you set up before for better performance that should work now and you can format to ntfs.
To boot into safe mode one way is to press the F8 when you boot your computer (after the bios post, not during bios post) a menu should pop up and choose the safe mode with networking or simply safe mode. Here you log into an administrator user account. Then everything should be ok to format it and set it up.