Copy/Clone Disk Partition on Windows Server 2019

by John, Published on: March 7, 2020

This article introduces how to clone disk with Windows Server 2019, and how to copy Server 2019 partition volume from one hard drive to another.

There are many reasons why you need to copy hard disk drive, for example, the entire hard disk is full, so you need to clone and migrate to larger one. If you installed Operating System in a traditional HDD, you may want to copy HDD to SSD to migrate OS, because SSD is much faster than mechanical hard disk. In this article, I'll show you detailed steps how to clone entire disk and single partition to another one on Windows Server 2019.

Sector-to-sector clone VS file-to-file copy

There are 2 ways to copy disk partition on Windows Server 2019: sector-to-sector and file-to-file copy.

It is very very slow to run sector to sector copy, because all sectors in source and target disk must be exactly the same. In this way, you cannot change partition size. If you copy a 250GB disk to a 500GB disk, the first 250GB will be the same with the source disk, the remaining 250GB will be Unallocated.

It is much faster to run file-to-file copy, because it works on file system level. It ensures all files are copied to new disk, but the sectors may be different. However, you won't find any difference in daily usage. Another benefit is that you can change size of the partitions on target disk.

In most cases, there's no need to waste a long time to do sector to sector clone.

How to clone hard disk with Windows Server 2019

  1. Download and install NIUBI Partition Editor, then you'll see all disk partitions with structure and other information.
  2. Right click the front of source disk and select Clone Disk.
    Clone Disk
  3. Select the target disk and click Next. (If there are some partitions on the target disk, these partitions must be deleted, so transfer valuable files before next step.)
    Select disk
  4. Edit partition size and location starting from the last one.
    Edit partition
  5. Click Finish in next window.
  6. Click Apply on top left to confirm and execute.

Follow the steps in the video to clone Server 2019 hard disk:

Video Server 2019

How to copy partition from one hard drive to another

When copying partition volume to a disk on Windows Server 2019, there must be Unallocated space in the target disk. If there's no such space, you can shrink a large partition to generate. This Unallocated space should be equal or larger than the used space of the partition that yo want to copy from.

To shrink a partition, right click it in NIUBI Partition Editor and select "Resize/Move Volume", drag either border towards the other one in the pop-up window.

Steps to copy partition volume in Windows Server 2019:

  1. Right click the source partition such as D: and select "Copy Volume".
  2. Select the Unallocated space in target disk and click Next.
  3. Edition partition size, location and type.
  4. (Optional) Right click original drive (D:) and select "Change Drive Letter", select any letter in the pop-up window.
  5. (Optional) Right click the target partition, run "Change Drive letter" again and select D: in the pop-up window.
  6. Click Apply on top left to execute.

In many servers, drive D is used to install programs, so you should change drive letter of target partition to D. To other data volumes, you may ignore the step to change drive letter.

Video guide to copy Server 2019 partition:

Video Server 2019

Besides copying disk partition in Windows Server 2019, NIUBI Partition Editor helps do many other operations such as shrink, extend, move, merge, convert, defrag, wipe, hide, scan bad sectors. Better than other tools, it has advanced Virtual Mode, 1-Second Rollback and Cancel-at-well technologies to protect system and data while modify disk partition.