There is no contiguous unallocated space or free space behind the partition you want to extend. You'll find why is the Extend Volume option greyed out on your computer: There is no unallocated space on your hard drive.
If you can't extend volume, like cannot extend volume in C drive, don't worry. Then Disk Management has appeared, right-click the C drive, and choose the Extend Volume to extend the C drive with the unallocated space. How do I extend C drive in Windows 10 with unallocated space?įirst, you need to open Disk Management by pressing Windows + X and enter the interface. Because the function of Extend Volume is only available when there is unallocated space next to C drive, otherwise the button will gray out. Extend Volume or Partition on Disk in Disk Management
