If you don't happen to have a Windows XP/Vista/7 to update from then you can do the following. Google Windows 8 customer Preview --> goto the Microsoft Site -->down load the FREE Windows 8 customer Preview and then update from that to Windows 8 proper (choosing clean install to format the hard drive and install the Windows 8 Update as a "new install"). Be quick though they may withdraw the free download soon.
Now that the OP's Q is answered, I have a similar one. I actually do have Windows 7 (Home Premium) installed, but I want to install a fresh copy of Windows 8 so no old files or settings are saved, and I also want to remove a partition. Will this copy let me do this? Previous installs have usually asked "do you want to wipe all data", but I've never bought an 'upgrade' before.
Yep you can choose to perform a clean install from Windows 7. Don't forget to delete the partitions during install (it will be given as an option during the custom install). Also make sure you have your Product Key for Windows 7 handy (Microsoft want to check you have a genuine version).
Because this is just an upgrade version and going by what it states in the graph in the product details, I thought that this would only remove Windows files and upgrade them and only keep your personal files intact, surely you'd have to format/clean install your PC using XP, Vista or Win7 (or use the Win8 preview edition as already mentioned by someone else) and then upgrade from there.
Having made sure you have backed up ALL the files you want to keep do the following to perform a completely clean install. Boot from the DVD and choose Custom Install Advanced (not Upgrade). Delete the partition(s) and then carry on with the clean install. Please note all information will be removed from the disk prior to the clean install.
Sorry, thought I posted it, but "Windows 8 System Builder" Is the version you require for a clean install. But I've not found and information on pricing as yet for it, hopefully that will be made available before it's release.
I think you'll find that you can do a clean install from the upgrade version - indeed when upgrading from Windows XP the ONLY option is to perform a clean install. I believe that the System Builder Version is required when you do not have a version of Windows to upgrade from. However if you do have a version of Windows XP/Vista/7/8 Customer Preview then you can perform a clean install - If booting from the DVD or Flash Drive just choose the Custom Install Advanced Option when prompted (not the Upgrade option) or if running the setup from within an existing copy of Windows choose not to keep any files.
If you Google Clean Install Windows 8 upgrade you'll see numerous detailed articles giving step by step details - Computer World do a good one.
BTW I believe that the customer preview version of Windows 8 will last until early in the New Year -15th January 2013 (see Wikipedia).
Can anyone tell me if the upgrade version has language choices upon installation? I live in France and want to install Windows 8 in ENGLISH. Will I be given the choice upon installation? My current OS, Windows Vista, cannot be changed to English?!?!
Once you have installed the OS using the supplied language (in your case French) you can then change the operating language to any one of 168 flavours via the Control Panel (i.e you download the appropriate language Pack via control panel). Unfortunately I have no idea about the scope or quality of these downloadable language packs.
Alternatively you could download Windows 8 Upgrade direct from the Microsoft Site and choose the UK English version. Wait 'till after next weeks launch and then Google Windows 8 download Microsoft - that is provided Orange/SFR/Free or whoever can provide you with enough bandwidth to download a very large file (roughly 2.5Gbytes for 32 bit version and 3.5 Gbytes for the 64bit).
So i need to buy one of these per PC i wish to install it on? Because i have 2 desktops i want to put Windows 8 on.
And the "Clean Install" thing does that mean if for example i have a "messy" Windows Vista pc and i wanted to put on windows 8 without all the crap still on my pc i can just do that or should i restore my pc back to factory settings and then install Windows 8?
As with all previous upgrade versions of Windows I would expect that if you launch the installer from within Windows it will do an "Upgrade" of your current system, that will retain settings/installed programs/etc. If however you want to use the upgrade as a chance to start afresh, boot from the DVD, when you get to the point in the installer where it asks where to install, delete the existing partition (probably worth making a backup of your data first) and click next... By this point it will have already checked for a valid windows upgrade path. In the past I had an experience where I was installing onto a new hard disk, the Windows installer prompted me to insert a install disc for a previous version of Windows... It's always worth keeping one handy.