When I right click on 3 of them all I get is a Help pop up. The 4th one I deleted now says, Unallocated. There is no expand option under the E drive, just extend volume.
Extend/Expand same deal..
When you click it, you should be able to take that 'unallocated' space and 'extend' the current drive by adding in that 'unallocated' space to it..
Basically what your doing is getting rid of all the small partitions and making better use of the 931GB (formatted) drive space on the 1TB hard disk.
The little partitions are just that little...the space they are taking is so miniscule.
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Another option, is to backup the data you don't want to lose onto a portable drive, then completely format that internal 1TB disk - then just put your data back onto the newly formatted 1TB drive.