Re: ubuntu 10.04 Step 4 options
I'm not sure what you're asking to do ...
But, in terms of installation, since you've already created free space, install Ubuntu to that using the "largest free space" option. Do NOT allow the installer to shrink your Win7 OS partition to make room.
As to sharing /home (if that's what you're asking), you can NOT really do that because MS Windows can not read Ext4 filesystem partitions.
If you want to share files, you would do better placing them in a non-OS (i.e., data only) NTFS partition. But, don't expect Ubuntu to use that partition for its /home directory. Won't work properly if you attempt that.
Ubuntu 14.04, Mint 17; MS Win 8.1.
Will not respond to PM requests for support -- use the forums.