I'm planning on getting a new desktop soon, but want to immediately install linux on the main drive without messing around with partitioning or dual booting to do some stuff for a little while. It seems like all of the pre-built computers now don't come with an actual windows disc, but rather make you create restore discs or use a recovery partition. After i'm done with the Linux stuff and when I download a windows 7 ISO image later, can I just use my windows cd-key on the case sticker and activate it no problem? I know the big OEM manufacturers use a SLP key for the bulk of the installs, but we also have that sticker on the side of the case with a unique serial number. Since I have a legit copy of Windows, I would rather activate it with my own serial than using something like Daz loader. So can I use the serial on the side of the box to re-install it during the install stage and it will activate no problems? Will it matter if the ISO copy i get is either Retail or OEM? TL;DR: Can I install and activate Windows using the serial/sticker on the side of the case?