Best Solution to Server 2008 Extend Volume Greyed Out

December 23, 2014

In Windows Server 2008 and 2008 R2, you may encounter the problem of Extend Volume greyed out. AOMEI Partition Assistant Server can provide an easy yet best way to solve it, so don’t worry about it.

Situation: “My computer system is Windows Server 2008 and recently there is always a warning to tell me my disk space is low and must get some space. But in my computer, the files and folders are all very important and cannot be deleted. So I decide to shrink D drive to release free space. However, when using Disk Management, the Extend Volume cannot work and it is greyed out. I am very urgent. Please help me, and recommend me a simple and fast way to solve Server 2008 Extend Volume greyed out issue. ” Almost everyone will meet this situation, but don’t worry about it. This article will provide a favor.

As everyone knows, in Windows Server 2008, the Disk Management enhances and users can use it to manage hard disks and the volumes or partitions. With it, you can do many disk-related tasks, such as initialize disks, create volumes, and format volumes with the FAT, FAT32, or NTFS file systems. Compared to the earlier version, Server 2008 disk management has some new features, especially Simpler partition creation and Extend and shrink partitions.

From the above situation, you can know when hard drive is running out of space, it is essential to extend volume to get some free space for data storage. Under normal circumstances, Disk Management will be used to do that task. However, during extending volume, after you shrink volume and then extend volume, you may find Server 2008 Extend Volume greyed out problem. But why does it exist? Let’s take a look.

Open Server 2008 Disk Management, and right click D drive to select “Shrink Volume” for some unallocated space.


Then right click C drive to click “Extend Volume”. However, the feature cannot work, and it is greyed out. Why? In the below interface, you can see the unallocated space is behind D drive, not behind C drive, so it is grayed. If the free space is on C drive right, this feature can be used to extend Server 2008 volume.


How to make up of Shrink and Extend Volume feature? A powerful software can do it.

In fact, it is quiet easy to solve this problem. AOMEI Partition Assistant Server – an excellent Server disk and partition management software, can be used to do some disk and partition operations, such as create/delete/format/shrink/resize/extend partition etc. To solve Extend Volume feature greyed out problem, you can use AOMEI Partition Assistant Server to resize partition to extend C drive.

Step 1: Download AOMEI PA Server and launch it. Go to its main interface, and right click D drive and select “Resize Partition”.


Step 2: Then enter the new size and specify the new location of the partition. Here you can move the slider to left or input new size to “Unallocated space after” blank. Then click “Ok”.


Step 3: Here you will see the unallocated space is behind D drive.


Step 4: Then you can use “Move Partition” to resize the location of free space. It can easily solve Server 2008 Extend Volume greyed out.

Note: You can also directly merge the unallocated space to C drive to enlarge C drive.


Step 5: Then right click C drive to select “Resize Partition” function to extend C drive. Then Move slider to right and click “Ok”.


Step 6: After finish all operations, click “Apply”. Then you will see your C drive is extended.


In one word, AOMEI Partition Assistant Server is designed for Servers to manage disk and partition. In addition in Server 2008, in Server 2003/2012 and all PCs, it is useful for resize and extend partition and make up of extend volume greyed out.

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