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Install Windows

First of all, you should be able to boot your PC with the Windows bootable CD that you purchased or that came with your PC. You must also have the Windows serial number because it will be required during installation.

It is necessary to have at least 512Mb of memory and 10Gb of free space to install Windows XP, 1024MB (1GB) of memory and 20Gb of free space for Windows Vista or 7.

Careful, installing an operating system also means erasing everything on a computer and start with a fresh install. You will lose your documents if you reinstall without backing up of your PC.

The following steps represent the installation of Windows 7, but if you plan to install other Windows versions, the process will be the same with some unimportant differences.


  1. Insert the Windows CD in your drive and shut down your PC.
  2. Start your computer on the Windows CD. If you're asked to press any key to boot from the CD, do so immediately so that the computer doesn't start normally, leaving the installation.
  3. When prompted, choose your language and click Next.
  4. Click Install Now.
  5. The license agreement is shown, click I accept the license terms and click Next.
  6. Between Upgrade and Custom, click Custom (for you're installing Windows, not upgrading it).
  7. Choose where to install Windows and click Next. To ensure that the place where you are about to install Windows is empty, you can clear the partition using the Format button that appears only after you have clicked on Drive options (advanced).
  8. You will be asked later for some information, the user name and password you want to use (you can leave this box blank if you do not want a password to enter each time you start the computer), your product key (or serial number found on your Windows CD packaging or on a label on the side of your computer or under your laptop), your time zone and you will be asked if you want Use recommended settings which means automatic updates and good security of your computer (great idea).
  9. Computer is installed and ready to use! Take a look at see missing drivers to see if Windows has everything you need to run every device of your PC (this is often necessary on Windows). See best softwares to install useful and necessary things.