Previous sorry if this question really newbie.
Problems like this.
I have a 250 GB HDD installed in the computer,
Hard disk that I bought it secondhand from a friend.
Partition C: = 100GB, D: = 150GB ...
I continue to reinstall. I re size the C: it's so 30 GB,
So there is still unused space 70 GB,
this is the question ...
Can the unused space to merge D:? Whose size was 150 GB, so a220 GB?
If you can, use what software?
That's all I want to ask