cannot setup window98 after format C:

Should anyone help me?
I have removed the boot-star manager from my harddisk. Then I make fix disk and format on C driver. After do that, I start to setup a window 98. At that time, The system show that the FAT is invaild for window setup. and needto fixed by MS scandisk. After I fixed it with MS scanddisk. I still cannot install Window 98. and I reboot my pc. I cannot read my c driver.
Moreover, when I turn on my pc with no floppy and no system in C driver. There is a signal show ” missing Operation system”.