
But the "Extend Volume" option on the C: drive is grayed out and disabled.” I freed up 100 GB unallocated space from the D: drive using the Disk Management "Shrink Volume" option and tried to add it into C: drive. With more and more programs installed and data added, the C: drive is running out of free space but D: drive has a lot of free space. “I have a Windows Server 2012 R2 with C: and D: drives on the same disk. "Extend Volume" greyed out in Windows Server 2012 2 Solutions to fix "extend volume greyed out” issue in Server 2012.Why “Extend volume” is greyed out in Windows Server 2012?."Extend Volume" greyed out in Windows Server 2012.
