Unable to install Win 7 - clean install

I do not know bios setup. Because, i join IT School june month .so, plz explain how can i found.

I'm sorry I cannot tell you how to enter BIOS setup for the make of PC you listed as No.

As I just said it should be given on the first boot screen which key to tap to enter BIOS setup. Look there.

Those step i follow than solve my problem .

The steps for BIOS setup only apply if you have an EFI BIOS. Entering BIOS to check as shown can tell you this. Otherwise you can read your mobo Manual on its Support Downloads webpage. Googling the mobo model's specs may also say if it's EFI.

If not skip them and do the Diskpart commands if you have backed up your files as it will completely wipe the HD.

I can not find bios .any other from to clean instal windows 7.My windows 7 software damage in my pc cann't open.i want to formate c drive, plz help me.

Can you boot the Windows 7 DVD?

No.

Do you know How to Boot your Computer from a Bootable CD or DVD?

What is the make of your PC or motherboard?

I do not know.

Ask your instructor at IT school how to boot a disk and find out your PC or mobo make/model.

Can you follow the illustrated steps by clicking on this blue link: Clean Install Windows 7