Ubuntu – Order of partitions for root, home and swap with respect to Windows partitions

Since you have windows 7, you can even use windows native utilities to shrink C drive. It would be good if you go step by step. I would do like this.

1. Use Settings -> Control Panel -> Administrative Tools -> Computer Management -> Storage -> Disk Management -> Shrink Volume from windows 7 and free up needed space.
2. From windows itself create a extended partition
3. Select extended partition and create a required D drive and leave rest of the space as unused for installing Ubuntu.
4. Do a reboot and confirm all looks good with windows drives including my new D drive and free space.
5. While installing Ubuntu, use manual partitioning scheme to choose any number of partitions from the free space and install Ubuntu.

This way, you can separate freeing up space for Ubuntu and Ubuntu install. Advantage that you will get an intermediate validation point to confirm all looks good.

Here is a detailed reference on resizing partitions from windows: https://help.ubuntu.com/community/HowtoResizeWindowsPartitions

Now, if you like to use D drive itself for Ubuntu along with windows, I believe wubi is the only option. Then, Ubuntu will co-exist inside windows as a program. On any other install, I believe Ubuntu expects to have root partition on an ext2/ext3/ext4 partition type.

Let me know if this helps.

For root and swap you can choose logical or primary your choice but remember you can only have 4 primary partitions on the hard disk after that no more partitions(logical or primary) will be created(i mean you cannot create partitions after that). If you want to create partitions you should convert one primary to extended(or logical) partition and split that into several partitions.

so if you are out of primary partitions then its recommended to install both in logical, if not you can install them on primary partitions(if you don't have any use of primary partitions in future like installing windows again)

I hope that helps