By AOMEI / Last Updated November 29, 2019

Resize (shrink/extend) partition on Windows Server with Disk Management

Sometimes, you might need to change the partition size when it is too large or too small for your data storage. In such cases, you can use Windows Server Disk Management tool to resize the partitions. When you enter the Disk Management window, you can view the detailed information of all disk partitions on your Windows Server computer. To resize the partition, you need to right click the target partition and choose “Shrink Volume” or “Extend Volume” option to adjust the partition size as you need.

Sounds a quite simple process! But it has a significant limitation on extending partition. The “Extend Volume” will be clickable only when there is some unallocated space right behind the partition you want to resize. Or this option will grey out and prevent you from doing further. To solve that, one solution is to move the target partition left in front of the unallocated space, but Disk Management does not offer such option.

Best tool to resize partition for Windows Server more easily

Since the Windows Server built-in Disk Management comes with the above shortcomings, many users are online searching for reliable free partition manager software to resize partition more flexibly. If you are also doing that, you can give AOMEI Partition Assistant Server a try. Compared with many other Server partition manager tools, this versatile tool can support both Windows 10/7/8/XP/Vista and Windows Server operating systems.

This powerful tool develops more advanced features than Disk Management to help users manage their disk partitions very well. For example, when the “Extend Volume” is greyed out since the unallocated space is not right behind the target partition, you can use AOMEI Partition Assistant Server’s “Move Partition” function to move the partition in front of the unallocated space, then extend it successfully. Besides, you can also directly merge the unallocated space into another partition via its “Merge Partition” feature. In addition, it can even copy partition, wipe partition, split partition and check partition for bad sectors. Apart from those partition management functions, it also supports converting data disk between GPT and MBR style without deleting existing partitions. All in all, by using it, you can resize Windows Server partition without difficulties.

Steps of resizing partition in Windows Server 2003/2008/2011/2012/2016/2019

When the capacity of one partition is not large enough, it will influence the computer performance to some extents. Then resizing the partition is a good solution to solve this problem. How to realize it by using AOMEI Partition Assistant Server Edition? Now follow me to have a look. (Here we choose the C drive as the target one and move some free space of D partition to it.)

Step1. Install and launch Partition Assistant Server Edition. We can see that AOMEI Partition Assistant has a considerable concise interface, with main functions on the left, and menu items on the top. Now right click D partition and choose "Resize Partition".

Resize D Drive

Step 2. In the pop-up window, drag the right slider bar leftwards to shrink it and generate an allocated space. Then drag the arrow to the right side, then the unallocated space will move to the location behind C drive. Press "OK" to continue.

Resize And Move D Drive


Step 3. Then it’s time to increase C drive. Just like resizing D partition, right click C partition and choose "Resize Partition".

Resize C Drive

Step 4. In the pop-up smaller windows, drag the slider bar rightwards till the end as the following picture. Press "OK" to admit this change. This operation will add unallocated space to C drive.

Extend C Drive

Step 5. You will see the C partition has been expanded. At last, click "Apply" on the toolbar and "Proceed" to commit the operations.

Proceed

Ok, that’s it! Very easy to use, isn’t it? With step-by-step guidance, sure you have got the point. Apart from resizing partition Windows server, AOMEI Partition Assistant Server also provides a lot of other features, such as allocating free space from one partition to another, extending NTFS system partition, copying disk etc. You will not be disappointed.