By AOMEI / Last Updated July 24, 2019

Why need to extend C drive in Windows Server 2003?

Though the size of hard drive is amusingly large today, it is still risk of running out of space under the pour in of applications, browser caches and temporary files. Windows XP and Server 2003 will warn you when it happens as "You are running out of disk space on Local Disk (C:). To free space on this drive by deleting old or unnecessary files, click here." It is also an alarm that you are going to suffer data loss and low work efficiency with the computer.

In brief, when the C drive is out of space on Windows Server 2003, your computer will become extremely slow and even freeze. To solve this problem, you can release some space from C drive by cleaning up some unused and unnecessary applications and data, but it is only a drop in the bucket. Moreover, if you delete Windows files by accident, Windows Server may not be able to boot. Therefore, it is not advised. But you can attempt to extend C drive in Windows Server, which is much safer and more reliable.

How to Extend C Drive in Windows Server 2003?

When it comes to extend partition in Windows Server 2003, most users might think about applying Disk Management and DiskPart.exe tool. But those two methods can really work? Keep reading, please!

Can you extend C drive via Diskpart in Windows Server 2003?

Most of users might know that in Windows Server 2003 Disk Management, there are no “Extend Volume” and “Shrink Volume” options in the drop-down menu. So you cannot use Disk Management to extend C drive partition. Thus, some users switch to Diskpart command line.

Diskpart is a text-mode command interpreter under Microsoft Windows environment. It is actually an underlying utility which augments the Disk Administrator graphical user interface and comes with many operations which are supported by the Disk Management snap-in. With it, you can manage disks, partitions, or volumes, so you can extend C drive in Windows Server 2003. Besides, you can manage both Basic disks and Dynamic disks. If an NTFS volume is on a hardware RAID 5 container to which free space can be added, you can extend the NTFS Volume with Diskpart while the disk remains a Basic disk. However, you must list disk/partition firstly and then select the object to give it focus before you use Diskpart commands on a disk, partition, or volume. Only when an object is focused, can Diskpart commands work on that object.

To extend a partition on server with Diskpart, you have to insure that:

  • For Basic volumes, the unallocated space for the extension must be the right contiguous space on the same disk.

  • For Dynamic Volumes, the unallocated space can be any empty room on any Dynamic disk on the system.

  • The volume you are going to extend must be formatted with the NTFS file system.

  • You cannot extend the partition on which the system page file is located. Move the page file to another partition which you do not want to extend.

  • Only data volumes extension is supported if there is a contiguous unallocated space behind it and it is NTFS file system.

Obviously, you cannot use Diskpart to extend C drive for Windows Server 2003. Besides, it is very difficult for many users to use command line. And data loss may be caused by inputting incorrect orders and the orders cannot be repealed.

Try AOMEI Partition Assistant Server to extend C drive in Windows Server 2003 successfully

To make up the limitations of Diskpart listed above, we need to use a third-party partition manager tool. For this special task, AOMEI Partition Assistant Server is a good choice. This versatile software breaks out all limitations of Disk Management and DiskPart, making extending C drive in Windows Server 2003 as easy as possible. Besides, it supports other Windows Server operating systems like 2008 (R2), 2012 (R2), 2011, 2016, and 2019, as well as Windows 10/8/7/XP/Vista. Below is how it works to extend C drive in Windows Server 2003.

Step 1. Install and launch AOMEI Partition Assistant Server. Right click the partition which has some free space to add to C partition and choose Resize Partition.

Resize D Drive

Step 2. Left move the bar to shrink it and get unallocated space from partition D and click OK.

Shrink Partition

Step 3. You can find an unallocated space after D partition. Right click on D partition and select "Move Partition". In the pop-up window, drag the slider bar to the right side.

Move Partition

Step 4. Now, you will see a part of unallocated space is adjacent to partition C. Right click C drive and choose Resize Partition. Right move the bar to add unallocated space into partition C and then click OK in the next window.

Resize C Partition

Step 5. To perform all the operations you have made, please click Apply.


Note: Before you plan to extend partition, you should make sure there is unallocated space right after the partition you are going to expand.

It is obvious that the Partition Assistant Server Edition is able to extend C drive in Windows Server 2003 successfully. Compared with Diskpart extend command, it is more magic and advanced. For Enterprise users, Unlimited Edition is the best choice to save money. It provides unlimited usage within one company. Once you install it on multiple machines in your company, maximizing business productivity whilst minimizing the total cost of management comes true.