m.2 SSD question

Esenbek

Commendable
Aug 28, 2016
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1,660
So recently I installed m.2 ssd samsung pro 950 512gb, but I did a mistake and divided it in two parts, 250gb (drive c)/250gb (drive d), one part has OS installed (W10) and other is empty, how can I make it one single drive instead of two without reinstalling windows, formatting etc?
 

Esenbek

Commendable
Aug 28, 2016
90
0
1,660


it doesn't work, extend volume is grayed out