Extend Partition Volume on Windows Server 2019

by Andy, Updated on: March 7, 2020

This article introduces how to extend partition on Windows Server 2019 with Extend Volume function in Disk Management, and the better method to expand server 2019 partition/drive without losing data.

The same with other Windows versions, hard drive partitions in Server 2019 also runs out of space. In this situation, you can expand this drive without starting over. To extend partition in Windows Server 2019, there are two choices: Windows built-in Disk Management and 3rd-party partition manager software.

Windows Server 2019 Disk Management has Extend Volume function to help expand hard drive without losing data, but it only works when there is adjacent Unallocated space on the right side, otherwise, Extend Volume is greyed out. Comparing with Disk Management, third party software is much more powerful. In this article, I'll show you both methods to extend volume on Windows Server 2019 without losing data.

How to extend partition with Server 2019 Disk Management

To extend partition with Disk Management in Windows Server 2019, your disk partition configuration must meet the requirements including:

  1. There must be another partition on the right and on the same disk.
  2. This right contiguous partition must be the same Primary or Logical drive.
  3. The right contiguous partition must be deleted.
  4. There's third partition to save all files in the right contiguous partition, so you can transfer files before deleting.

If your disk partition configuration meet the requirements, you can extend Server 2019 partition without any software.

Steps to extend partition volume in Windows Server 2019 with Disk Management:

  1. Press Windows and X together on your keyboard, then select Disk Management in the list.
  2. Right click the partition that you want to delete (such as D:) and select Delete Volume, then the disk space will be changed to Unallocated. (Caution: remember to transfer files before deleting.)
  3. Right click the partition that you want to expand (such as C:) and select Extend Volume.
  4. Click Next in the pop-up Extend Volume Wizard window.
  5. Available disk space is selected automatically, click Next to continue.
  6. Click Finish to begin extending.

Extend Volume Wizard

Limitations of Windows Server 2019 Extend Volume function

As I said above, Disk Management has limitations that cause you cannot extend volume in Windows Server 2019. Typical limitations include:

1. Unallocated space can only be extended to the left contiguous partition

The built-in Extend Volume functionality only works when there is adjacent Unallocated space on the right side, otherwise, Extend Volume is disabled. As you see in the screenshot below:

Extend Volume disabled

You cannot get right adjacent Unallocated space while shrinking volume with Disk Management, so the only way to extend partition with Server 2019 Disk Management is by deleting the right contiguous volume.

2. Only support NTFS partition

Extend Volume only supports NTFS partition, so FAT32 and other types of partitions can't be extended, even though there is adjacent Unallocated space on the right side. As you see in the screenshot, Extend Volumes is grayed out, because drive D is formatted as FAT32.

Extend Volume greyed out

3. The partitions to delete and extend must be the same

If your hard disk is GPT, there's no such issue. But if this disk is MBR, you should check the type of the partitions that you want to delete and extend. Both partitions must be the same. If one is Primary and the other one is Logical, you cannot extend partition even after deleting the right contiguous one.

Extend Volume disabled

Better way to extend hard drive with server partition editor

To extend partition in Windows Server 2019, NIUBI Partition Editor is better choice. Comparing with Disk Management, it has advantages while resizing partition:

Better than other server partition software, NIUBI Partition Editor is much safer and faster because of the advanced technologies:

Download NIUBI Partition Editor and follow the steps to extend volume partition on Windows Server 2019:

How to extend system partition:

Video Server 2019

How to extend a data partition:

Video Server 2019

In Summary

Windows Server 2019 Disk Management can only help you extend NTFS partition by deleting the right contiguous one. If you want to extend FAT32 partition, or extend a partition by shrinking another one, or extend a partition with nonadjacent Unallocated space, you have to run third party software. Because of the advanced technologies, NIUBI Partition Editor is much safer and faster. Besides shrinking and extending partition, it helps do many other disk partition operations.