Instead, you can MOVE the Unallocated space with partition software. It is absolutely a BAD idea to delete drive D as well as other volumes in the Extended Partition. You should delete all volumes in the Extended Partition and then delete the entire Extended Partition. If the adjacent drive D is in the Extended Partition, you cannot extend C drive by simply deleting D.

Only when there’s contiguous Unallocated space on the right of a NTFS partition, you can extend this partition with Disk Management.

There is no adjacent Unallocated space.

In Windows Disk Management, only NTFS and RAW partition can be extended.

You may try to extend a FAT32 partition.

The reasons why Extend Volume greyed out in Server 2012 r2: Now, the disk space shows as Unallocated, and Extend Volume becomes available. Right click C drive but Extend Volume is still disabled.įrom Microsoft, to extend a drive there should be adjacent Unallocated space, then what about deleting D?ĭid it, but Extend Volume is still grayed out!įrom the screenshot, there’s still no Unallocated space, it may be caused by the Extended partition, so delete all volumes in the Extended partition and retry. Now, 10GB free space has been taken out from D.

Right click D: and select “Shrink Volume” Most of the people want to do is shrinking D to expanding C, so let’s try to shrink D first. If you right click a drive without contiguous Unallocated space, Extend Volume is absolutely grayed out. Why Extend Volume grayed out in Server 2012 r2?īefore explaining the reasons, let’s see the scenarios Extend Volume is grayed out in Windows Server 2012 Disk Management. In this article, I’ll introduce all possible reasons why extend volume greyed out in Windows Server 2012 (r2) Disk Management how to fix this issue easily. After shrinking D or other partition, they found that Extend Volume is disabled for C drive. When C: drive is getting full, some people try to shrink partition and extend C drive. There are “Shrink Volume” and “Extend Volume” functions in Windows Server 2012 (r2) native Disk Management. Extend Volume greyed out in Windows Server 2012 r2

Windows extend volume greyed out