C drive has been feeling too big, so a separation from inside the D drive, and now find that this decision is wrong, you want to get back again
this Computer -> Computer -> Manage -> Disk Management
into the disk management (this picture FIG merger End)
My time before the D drive there is also something that does not want to put it all deleted, so I split off from 30G D drive, become like
Then found to be gray, click the C drive found its volume expansion option is grayed, checked and found this: expand the C drive only from the adjacent disk expansion, that extended from the D drive,
no way only the D drive just out of the points go back to get another 30G: click the D drive -> extend volume ,, according to the default extensions like
then ,, to be able to expand the C drive, only the D disk backup important data , then go back to the D drive across the extended
-click the D drive -> delete volume
After confirm the deletion, and then right-click the C drive over there -> Extend Volume (storage space here my D drive after removing extra or gray, but can be expanded to the C drive)
