By AOMEI / Last Updated October 17, 2016

Why Extend System Partition Windows Server 2012

Nowadays, more and more people use Windows Server 2012 to deal with their business. However, the system partition of Windows Server 2012 may run out of space gradually. So I think the subject of extending system partition in Windows Server 2012 due to lack of space or other reasons is still a good subject for server users. Even a newbie knows that low disk space on system partition will affect the whole computer’s speed. So we must clean the garbage files in time. Even so, we have to extend Server 2012 system partition to avoid system crash and to improve the running speed in the end.

When it comes to extending system partition, someone worried about losing data naturally. I understand it. In Windows Server 2012, you can extend and shrink drives with its disk management. But, unfortunately, resize partition with shrink feature and then extend system C: drive with the extend feature is impossible usually. You may find the Extend Volume grayed out even after you shrink another partition. Because to extend a drive there should be an “unallocated” space behind it, so you cannot extend the system C: drive by shrinking the D: drive directly. The only way, in Windows Server 2012, to extend system partitionThe is to delete volume D or moving it. However, moving partition is not available in Disk Management. Thus it can be seen to extend system partition on Windows Server 2012 is an inconvenience with Windows built-in disk manager.

A more flexible way to Extend System Partition for Windows Server 2012

Besides Windows disk management, you can also try professional third-party partition software. To select a 3rd party tool, you should concern about its security, stability, and usability. At last, AOMEI Partition Assistant Server Edition stands out from software market base on comprehensive comparison. It's simple and users friendly. Following are tutorial to extend system partition on Windows Server 2012 with AOMEI Partition Assistant Server Edition.

Step 1: Download it from AOMEI official website, install and run. You will see the main screen and disk map as the following picture.

Partition Assistant

Step 2: Right click partition E and select “Allocate Free Space” option. In the pop-up window, type the value and select C:(system partition). Click “OK” to back to the main screen.

Allocate Free Space

Select C

Step 3: Now you can see there are three pending operations. Just click “Apply” to proceed if you have no question.


Besides this solution, you can also choose the option of “Extend Partition Wizard” from the left toolbar. See picture below.

Extend Partition

When you select it, in the pop-up window, the first method is wizard of extending system partition on Windows Server 2012. Click “Next” to go. Here I won’t explain anymore, I suggest you try and enjoy it by yourself.

Extend System Partition

With the help of AOMEI Partition Assistant, only a few steps you can expand system partition without data loss successfully. So I think AOMEI Partition Assistant Server Edition is the best choice to extend system partition in Windows Server 2012. Besides, it also supports convert MBR to GPT disk and back without data loss, convert dynamic to basic disk without affecting OS, migrate OS to SSD without reinstalling Windows, etc.

AOMEI Partition Assistant Server Edition can take the place of Windows Server 2012 disk management completely. Actually, it also supports Windows personal computer operating system: Windows 8.1/8/7/XP/Vista, all is no problem. Other Windows server operating system: Windows Server 2008(R2), Windows Server 2003(R2), all is OK.