Boot from Windows 7 DVD

The first step is to place your Windows 7 DVD into the DVD tray and boot the machine. Your computer needs to be configured to boot from DVD. This is done via press  F8 for computer F12 laptop

Once you have completed this stage, Windows 7 will start loading. If you see the below image, you're doing well so far.

After a few moments, you will reach the installation menu. Your first step is to choose the language and the keyboard.

You will be now taken to the Install now menu. We have already prepared for the installation, so you can click Install now and proceed.

The next step is to accept the license agreement.

After this, you will have to decide whether you want to Upgrade an existing installation or perform a Custom (advanced) installation, which is basically creating a new copy of Windows.
We will discuss multiple boots in a separate tutorial. For now, if you are interested, you may want to explore a Dual boot tutorial that tackles this issue from the Linux side, with a Linux distribution being installed alongside Windows XP. In the soon-to-come multiple-boot tutorial, I will address the installation of Windows 7 alongside other Windows (XP and 7), as well as Linux.

Personally, I recommend you install a new copy. Fresh installations are always better. Your machine starts in a pristine state and does not rely on old leftovers.

Partitioning or Formate

The next step is to choose where you want to install Windows 7. This is probably the most important part of the entire installation, so you need to be very careful here and make the right choices.

if u want to format click on format  

Begin installation

If you're comfortable with your setup, highlight the created partition and click Next. Windows 7 will be installed to this partition. Depending on your hardware, this can take some time. My testing shows approx. 30-40 minutes.

During the installation, your computer may restart several times. Let it be.
 Wait untill it complete after ur system get automatically restart

User settings

Eventually, you will be asked to provide your username and a computer name. You will also have to password-protect your account. This is most advisable. You should opt for a strong password.