Comment 10 for bug 652852

@CeesSluis: that didn't work on my laptop. The hard disk of 100 GB contained a Windows partition of approximately 80 GB and about 20 GB free unallocated space (the former Ubuntu partition which I destroyed with Gparted).

When I chose the "alongside" option, Ubiquity then only offered the option to take some space from the existing Windows partition. It would do nothing with the unallocated free space.