

#4 - And then select available free space to get c or the one you want to expand extended. #3 - And then follow the extend volume wizard to get it extended. Or when there is free space adjacent to c drive and the extend volume would be enabled in disk management. Here is a photo shows that Extend volume c is available when there is unallocated space next to c drive. # 2 - extend volume in disk management after the first step when unallocated space was made after the deleting.Įxtend volume is enabled when there is unallocated/free space next to the one you want to expand. When there are important files on the volume, backup them somewhere else or option - you may shrink it to make some unallocated space adjacent to the one you want to expand. Step 1 - delete volume in disk management #1 - Delete volume (must be the one next to the volume you want to expand) to produce unallocated space Fix #1 - Deleting volume to enable extend volume

Most of time, the extend volume is grayed out under Disk Management since the unallocated space is not adjacent to the partition you need to expand. However, you cannot create unallocated volume which shows adjacent behind the partition you want to extend by shrinking partition. Many people like to shrink partition with Windows 2012 R2 Disk Management because this solution does not cause any data loss. If there is no unallocated space, it is easy to get some by deleting or shrinking partition. (You may convert it to GPT disk to get it extended.) The disk is less than 2TB that is built with MBR and cannot be extended over 2TB.The volume you want to extend is not with NTFS filesystem (a fat32 volume is not supported with extend volume in disk management -> We would introduce ways to get it fixed.).The unallocated space is not contiguous to the partition you want to extend (this could be moved by software).There is no unallocated space on the same hard disk.Usually, the extend volume shows grayed out in following situations:

Symptoms&Causes of Extend Volume Grayed out

This guide can be applied to all Windows Server extend volume greyed out issue, not only limited to a specific server version.
