By AOMEI / Last Updated December 13, 2019

Problem:“Is it possible to merge C and D drives without deleting the data or having to format them. If it's possible, please tell me then how to do this in Windows Server 2008. My data partitions are almost full of important data (cannot be deleted).”

This question is from a forum. Maybe many Windows Server 2008 users encounter this situation and feel very upset. Disk space is important for data storage, how will you do to solve this problem? This article will introduce you a solution.

Why to Merge Partitions?

From the situation, we know that in order to make use of the disk space, and extend small partition size, merging partitions is essential sometimes. When users buy computers and partition for disks first, you cannot evaluate the exact size of each partition and reasonable allocated free space according to the needs; therefore, it is very popular that Server users encounter low disk space problem on a partition. Even sometimes, an alert “You are running out of disk space on Local Disk C (drive letter). To free space on this drive by deleting old or unnecessary files, click here”.

In this case, most users turn to expand this partition by get some free space from other partitions, the common way is to merge Server 2008 partitions, which is essential for you to solve low disk space problem.

How to Merge Server 2008 Partitions?

Disk space has some influence on computer performance, and it is very significant to have enough disk space to ensure computer runs smoothly. Merge Server 2008 partitions can help you in this aspect. But how to merge partitions in Server 2008, here are two available ways.

Way 1: Shrink and Extend Partition to Indirectly Merge Partitions in Windows Server 2008

One is to shrink and extend partition, and this way can indirectly merge partitions. The most popular tool is Disk Management, by its shrink and extend volume feature to achieve users’ aim. But this way has a limitation, if you shrink a partition and get some unallocated space, but the unallocated space is not next to the small partition, extend volume feature will be grayed out and cannot work.

Way 2: Directly Merge Partitions in Server 2008

If Disk Management cannot help you solve problem, you can choose a simple way to assist you, a professional server partition and disk software - AOMEI Partition Assistant Server, which supports resize/extend/shrink/wipe/delete/create partition, and you also can use it to merge partitions directly. A guidance tells you how to combine partitions.

Step 1. Download AOMEI Partition Assistant Server, and launch it. Then you can right click the partition with low disk space problem and select “Merge Partitions”. (Take merge c drive as an example)

Merge Partition

Step 2. Then you can merge two adjacent partitions into a bigger one partition. If you merge c drive with d, all the data in d partition will be merged into C:\d-drive.

Tick Another Partition


  1. In addition to merging two partitions in Server 2008, you also can combine c partition with the unallocated space, no matter whether the unallocated space is behind c partition or not, AOMEI Partition Assistant can help you. (If there is not some unallocated space, you can resize partition to get some space and then combine partition with it to extend c drive.)

2. Besides, you can only merge the adjacent partitions, and only can merge data partition to system partition, but cannot merge system partition to data partition.

Choose Unallocated Space

Step 3: Then after finish these steps, click “Apply” to execute the operations.



1. Before you do the management for your disk and partition, you’d better back up your important files by AOMEI Backupper.

2. During partition, you’d better not cancel the operations. Please wait patiently.


In summary, it is easy to solve low disk space problem by merge Server 2008 partitions, and with the favor of AOMEI Partition Assistant, you can never worry about how to merge partitions in Windows Server 2008 (R2) /2003/2012 (R2)/2016/2019 servers and all PCs.