3 Ways to Extend System Partition C Drive in Windows Server 2008

October 17, 2016

System partition (C drive) running out of space? Don’t worry, you can actually extend system partition in Windows Server 2008 without data loss.

When do you need to extend system partition?

After installing many applications in Windows Server 2008 (R2), you may find the system partition is running out of space. When there is critically low disk space, you will also receive the “Low disk space” warning. In that case, you need to extend system partition in Windows Server 2016. There are two built-in tools, DiskPart.exe and Disk Management, in Windows Server 2008 (R2) that allows you to extend primary partition or extended partition without data loss under some circumstances. If the built-in tool fails to work, you can also use third party software to extend C drive without affecting OS. 

Extend C partition in Server 2008 with DiskPart

If there is unallocated space right behind the system partition, then you can use its Diskpart Command to extend partition.

>Open Start Menu and type “cmd” to enter.

>Type “Dispart” and press enter. Then there will be diskpart.exe window.


3. After deleting partition D, right click system partition and select "Extend Volume". Then, follow the "Extend Volume Wizard" to completing extending system partition.


If there the Extend Volume option grayed out and you do not want any data loss, you can use third party software AOMEI Partition Assistant to expand system partition without data loss even when there is no unallocated space on the disk.

Extend OS partition in Server 2008 with Disk Management

If you do not familiar with Windows command prompt, you can use Disk Management which owns Shrink and Extend feature. Like DiskPart, Disk Management also needs contiguous unallocated space to extend a partition. "Shrink Volume" can only generate unallocated space behind the partition you shrunk. Therefore, you have to delete the partition behind C: drive to get contiguous unallocated space. 

1. Press Windows key and R key to bring up “Run” window, and type “diskmgmt.msc” to open Disk Management.

2. Right click the partition behind system drive, usually D: drive, and select "Delete Volume", which will cause all data on D: drive lost. If there is contiguous unallocated space behind C: drive, you can just skip to step 3. 


>Then right click c drive to select “Extend Volume”. Here it cannot work.


Why? In fact, this way is same as Diskpart Command, which all need unallocated space is next to OS partition. How to do it? Take it easy! An excellent disk and partition management software can be recommended to you.

Resize partition with AOMEI Partition Assistant

As a professional partition and disk manager, AOMEI Partition Assistant Server is very reliable and useful for enterprises users to resize, delete, format, create, merge, move, shrink and extend partition. It can make up for the deficiency of Diskpart command and Disk Management, no matter where the unallocated free space is behind system volume, or not next to it, the software can resize and extend system partition Server 2008 well.

1.Launch AOMEI Partition Assistant Server edition in Serer 2008. And go to its main interface; right click D drive to select “resize partition”.


2. Move the slider to get some space. You can move to left or right. Here take left move as an example.


3. Right click C drive for “Merge Partition”. If the unallocated space is behind C partition, you can select again “Resize Partition” to move slider to right for directly extending system partition C drive in Windows Server 2008.


4. Then select unallocated space to merge with C drive. Click “ok”.


After finish all the operation, click “Apply”. You will find your system partition is expanded.

In fact, it is very simple and fast to extend system partition Server 2008 with AOMEI Partition Assistant Server, which saves troubles and time without data loss. In addition to the above ways, you also can use “Extend Partition Wizard” of the software to extend c drive.

After knowing so many ways for partition extend, do you need to resize and extend your partition to ensure computer runs smoothly? If you want to try Partition Assistant Server, you can download it now.