
Hello
I installed linux on HDD and divided the D disk into 2 partitions. After some time, however, I wanted to remove this additional system (because the main one is Win10). So I deleted the volume, this picture is the 138GB. He then became unassigned.
And now I don't know how to combine these 2 partitions into one 1 terabyte disk.

I get this notification after trying to extend the volume (the one with 792GB).
How can I combine these volumes into one whole disk?