If you want to try Windows 8 Consumer Preview Version then upgrading your existing computer running on Windows XP, Vista or Windows 7 to Windows 8 will be a good choice for you. It is because if you install fresh copy of Windows 8 instead of upgrading then there might be several issues of software compatibilities. Hence it’s better for you to upgrade your existing computer to Windows 8 itself. But one thing should be remembered here, since it’s an upgrade so you’ll be overwriting your current version of Windows and your existing software programs will only be preserved if you are moving from Windows 7 to Windows 8. If your PC is running Windows XP or Vista, all your files and data will be preserved but you won’t be able to use the software apps after upgrading to Windows 8. Is this clear to you?

How to Upgrade?

This TechPuffs tutorial describes step-by step procedures of upgrading your existing PC to Window 8 while preserving the software programs.

  1. First if you already have bootable DVD of Windows 8 insert that in your computer and navigate to DVD drive inside Windows Explorer and double-click the setup.exe file.

    If you don’t have bootable DVD of Windows 8 then to know how to get and create bootable DVD of Windows 8 in your PC read my article :
    Learn How to Create a Windows 8 Bootable DVD from ISO Image

    Windows 8 Consumer Preview : Preparing for Installation

    Windows 8 Consumer Preview : Preparing for Installation

  2. In the next window select “No thanks” instead of “Go online to install updates now option (recommended)”. This is because due to writing, there are no updates available and hence you’ll save a few minutes.
    Windows 8 Consumer Preview : Updates Setup

    Windows 8 Consumer Preview : Updates Setup

  3. Enter you Windows 8 Product Key. The universal product key for this preview version is :
    NF32V-Q9P3W-7DR7Y-JGWRW-JFCK8

    Windows 8 Consumer Preview : Entering Product Key

    Windows 8 Consumer Preview : Entering Product Key

  4. Choose the component of your existing Windows setup that you would like to preserve in Windows 8. You can either do a clean install and choose “Nothing” or use the “Windows settings, personal files and apps” option to preserve everything.
    Windows 8 Customer Preview : Preserving Files and Apps

    Windows 8 Customer Preview : Preserving Files and Apps

  5. Windows 8 installer may want you to uninstall certain apps like Microsoft security essential before proceeding.
    Windows 8 Consumer Preview : Ready to Install

    Windows 8 Consumer Preview : Ready to Install

Uninstall those programs and once you have done that, restart the PC and hit the Install button. You can re-install these apps once the installation is complete.