I have a 2TB external HDD I use for storage and backups, and

>>61481332
you just need to format those unallocated spaces, but you can't merge them because they're not together

formatting the whole thing would be optimal

>>61481395
But I can't lose the files on the one usable partition. Those contain years of computer backups, software dumps, and graphic design projects for multiple high dollar clients (bands, YouTubers, law firms, etc)

>>61481440
but still formatting the empty space will give you access to that unused space, there's nothing there

File: Extend_Step1.jpg (321KB, 1269x646px) Image search: [Google]

321KB, 1269x646px

>>61481440
if you have high dollar clients, you should be able to afford a second drive to make a temporary copy.
then you delete everything off the first drive, recreate the partitions, and move it back.
heck, keep the data on both drives. if one dies, you still have the other

btw, that looks like a 3TB drive

anyway, if you want to do this the long way (which will put quite a lot of wear on the drive)
1. create an ntfs-formatted partition in the 915.63 unallocated space.
2. copy the data from H onto the 915.63 (that's the step that puts a lot of wear)
3. delete H and the 931.57 partitions
4. right-click your 915.63 and pick extend volume (pic related). then let it fill up all the remaining space. that way you have one single partition that takes up the whole drive.