This is a bit of a 2 parter:
I recently installed Ubuntu 12.04 on my Windows 7 PC. I had initially created some free space through diskmgmt.msc for Ubuntu to be installed to. I never formatted it, but it was left as ~30GB free space. When it installed I never actually got to pick where to install it to, it just installed. Now diskmgmt.msc shows that the ~30GB free space is now 2 Primary Partitions, 21GB and ~8GB. I would provide a screen shot, but new users cannot do this. The primary partitions however, seem to be totally empty.
My question is, did Ubuntu install itself here? If so, why is the free space marker still at 100% of the drive?
It now seems that Ubuntu is the primary OS, as I am presented with the "grub" screen when my PC boots, and when I leave it, it defaults onto Ubuntu, as opposed to the "aesthetically pleasing" black on white "what do you want to boot" screen.
I only use Ubuntu to play around with occasionally, or to write C++ in for university work. Is there a way of restoring Windows back to the primary boot, or is the easiest thing to do to uninstall Ubuntu, and re-install it again. How will this affect my Windows installation?
If I am to do this, how should I ensure that it installs to my 30GB set aside for this purpose, and that it is not my primary OS?
Sorry if this has been answered over and over again, I couldn't find an exact answer to my situation.