How can I create an usable partition with unallocated space?

So I have an unallocated space in one of my disks, and I want to use it in order to storage my Downloads, I want to know first how can I make this space an usable space, and second, how can I move my Downloads folder there (this is easy on windows but I don't know how to do this here), thanks in advice, I made a capture:

Solution 1:

You need to create a file system in order to use the space.

You can use the "Disks" application to do format the partition and create a file system:

• Open the "Disks" application (gnome-disk-utility).

• In the left column, select the physical disk where the partition is located. Then, on the right, select the unallocated space that you want to format.

• Just below the graphical representation of the partitions on the drive, click the + icon that says "Create partition in unallocated space"

• Click "Next" if you want to use all of the unallocated space. Otherwise, adjust the size of the new partition before clicking "Next"

• Give the new partition a "Volume Name", and choose the type of file system you would like to use. If you are going to use the partition for Ubuntu only, select "Internal disk for use with Linux systems only (Ext4)".

• Click "Create" to create the new partition.