The Windows Installer
If your PC came with a recovery partition, your startup screen or BIOS utility contains instructions for booting from this image. After you boot into the installation image, the installer walks you through the steps to format your disk, enter the product key and install the OS. The disk menu prompts you to partition your hard drive and choose a location for the operating system. You can create a partition by clicking "New," delete one by clicking "Delete" or erase its data by clicking "Format." For 64-bit Windows, you need at least 20GB of free space, and for 32-Bit Windows, at least 16GB. However, to make room for files and applications, you usually need around 40GB. After selecting a partition and installing Windows, your computer restarts several times and then boots into your new operating system, which you can configure by following the on-screen instructions.
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