Sasandra wrote:
Yeah, no harm, just the hastle since it's an upgrade disk, so it would be format, install xp & register, then run 7 upgrade, format and install again them reinstall drivers, some programs, etc, just kind of wanted to make sure it was worth while before going thru all that.
If I do I should probably order a new HDD too then cause the vista experience thing doesn't exactly care for my current primary HDD and it's the low point on my score of 5.3, I have my OS on an old 36GB 10k rpm WD raptor, and while they were great in the day speed wise now not so much, my cheapo 200gb 7200rpm drive is faster, so thinking of getting a new larger one and moving the 74GB raptor to be the OS drive as that one is quite a bit faster than the 36GB one was.
You don't have to install XP and register first, just do this.How to Clean Install Windows 7 with a Upgrade DVD Disc or ISO Image
Note: User who has downloaded Windows 7 boxed ESD installation files should follow these steps to create a bootable Windows 7 ISO image from unpacked Windows 7 installation files and burn to DVD prior to follow guide below.
1. Boot up the PC with the Windows 7 Upgrade DVD disc media into DVD-ROM drive.
2. Follow the Windows 7 Install Wizard to install the operating system on the blank, empty and clean system. During installation, when prompted for a product key, DO NOT enter the upgrade version product key.
Tip: This step is to prevent “Invalid Product Key” error. User can try to input the serial number to check if setup accepts the key. If it’s accepted, all the rest of steps can be skipped.3. Unselect and untick the Automatically activate Windows when I’m online check box during the installation process. After Windows 7 is installed, boot up to desktop, and manually enter the Windows 7 upgrade product key to activate online or activate via phone.
If you run into issues, there's some more tips in the original article -
http://www.mydigitallife.info/2009/10/27/clean-install-windows-7-with-upgrade-media-and-product-key-on-formatted-or-empty-blank-hard-drive/