partitioning - How to move and resize partitions Ubuntu+windows dual boot

I have a laptop with a dual boot Windows/Ubuntu.
I'd like to move and resize the partitions, as the default installation put Ubuntu on a 12GB partition and I'd like to use more.
I have booted my system from a USB stick, started G-parted, but the situation looks a bit complex: my Ubuntu partition is blocked by the Linux swap partition and I don't know how to move it.

Partition /dev/sda5 is not needed, (it's Windows D disk).

Here's what I would do:

1. Backup your important data! Messing with partitions is dangerous!




2. Delete the sda7 swap partition and sda5 data partition, and extend your main sda6 to fill all the unallocated space except 8GB at the end (which you will use for your new swap partition)




3. Create a new swap partition in the remaining 8GB of unallocated space




4. Follow this Q&A on Superuser to change your installation to use your new swap partition