How to Perform a Clean Installation of WindowsYou can perform a clean installation of Windows 8.1 or Windows 8 using installation media, such as a DVD or USB flash drive. You don't need a previous version of Windows installed on your PC to perform a clean installation of Windows 8.1, but you do for Windows 8.

If your PC doesn't have a version of Windows already installed, you'll need install a previous version of Windows or buy Windows 8.1 or a System Builder version of Windows 8 at a local retailer if it's available in your country or region.

To Perform a Clean Installation Using a DVD or USB Flash Drive

If you bought Windows 8.1 or Windows 8 on DVD from a participating retailer, or created a DVD or bootable USB flash drive when you downloaded Windows using Upgrade Assistant, follow these steps to perform a clean installation.

Warning

If you format a partition during installation, any data on the partition will be erased. Be sure to back up any data you want to keep before you begin.

• Turn on your PC so that Windows starts normally, insert the DVD or USB flash drive, and then shut down your PC.• Restart your PC, and then press any key to boot from the DVD or USB flash

drive.If your current version of Windows still starts, try again by waiting until Windows asks you to sign in, shutdown completely, and then restart your PC again.

On the Install Windows page, enter your language and other preferences, and then tap or click Next.Tap or click Install Windows.

On the Please read the license terms page, if you accept the license terms, tap or click I accept the license terms, and then tap or click Next.On the Which type of installation do you want? page, tap or click Custom.

Need More Help?

• See all support pages for www.atomechanics.com• Ask a question in the support@atomechanics.com• Toll Free Number: 1-800-499-3734