If you want to add the D:\ space to C:\ in disk management format D: after you have backed up any files...then allocate it by clicking on it and selecting that choice.
Then right clik C: and select merge and it should finish the process.
Re-boot afterwards.
Or you can simply leave it as is and store all pics, movies and music there for example which will free up space on C:
You can delete D: and merge the space back into C:, but what's the point? Unless you need more space on C: drive, just start using D:. I'm a big fan of partitions - all of my systems have a bunch of them.
I only have a total of 160GB in my hard disk, C: with 97.4 and D: with 50.5. Only 19.1GB is free in C: now.
To fully utilize my duo core CPU, I wanted to upgrade from Vista Home Basic that came with my laptop to Windows 7 Home Premium. For that, I needed full backup in case something went wrong. I bought an Intel SSD 520 with 240GB. After cloning what's on my HD to the SSD, I intend to swap the two so that the SSD ends up inside my laptop. Then I'm going to do the upgrading on the SSD.
I don't know how the C: and D: will space out in the 240GB SSD. So I thought I'll just delete the D: in the HD first.
Let's see if I got it right - the steps are:
1. backup the files in D
2. click "Format D" in disk management
3. right click C and select merge
4. reboot.
Correct?