Well, my Win7 is an OEM Version (or so the download said) and I only have 1 partition on my ssd that I use für windows (and some games/programs Like I said, I'm gonna try it tommorrow with the new win7 I download right now.
It's the OEM version? So did it not come with a key installed, or a key under the bottom of the laptop that you can enter and then activate online or via the phone?
Well, I downloaded win 7 and needed to use a key. The download description in the forum said it's OEM version. And no, I had no windows preinstalled when purchasing the laptop (if that's what you mean).
It's probably a version of Windows 7 bundled with updates and with the loader added, but as it's a UEFI system the loader will exit when installing Windows.