You will need
  • - Windows boot disk;
  • - an external DVD drive.
A certain part of the mobile computers are sold with preinstalled operating system. Look on the underside of the laptop sticker Windows and verify the operating system version. The fact is that if you install a different OS version, you will not be able to use the provided license key.
Download image of a bootable disc with the right version of Windows. Specify the bitness of the system. If you do not find the desired information, identify the bitness of your own. As a General rule, if your computer was originally installed more than 3 GB of RAM, so the manufacturer used the 64-bit OS. You can also use a universal disc containing all available versions of Windows Seven.
Create your own installation disk. To do this, write the downloaded image to a DVD drive using software such as Nero Burning ROM. Insert the received disk drive in the mobile computer.
When working with netbooks, an external DVD drive. This equipment is usually connected to USB ports of the laptops. Turn on your laptop and press a key to invoke a menu choice of boot devices.
Highlight Internal/External DVD-Rom and press Enter. Wait for the preparation of files for installing an operating system. In the first menu, click "Install". Select the version and bitness of system if you are using such a disk. Click "Next".
Click the left button of the mouse on the local disk, which is the current operating system. Click "Format" located in the submenu "setup disk". Now again click "Next".
After some time the laptop will restart automatically. Remember that all subsequent runs must be completed with a DVD drive and hard drive. Fill in the menu as they appear. Initially, activate the firewall and update service operating system. Don't forget to set a password for the administrator account.