By Emily / Last Updated March 23, 2021

When need to use Hard Disk Serial Number Changer?

A hard disk will be assigned a new disk serial number whenever you format a hard drive. This serial number is used by software programs installed on the computer to identify the disk driver and prevent multiple activations of the same software on other computers. However, if you replace your old hard drive with a new one, a different serial number may create with software association.

To avoid software association issues, you can change the new drive’s serial number to match your old hard drive. But the serial number is created during the format. That means you have to reformat the hard drive to change its serial number. And formatting will delete everything on the disk. Then, you can use "Hard Disk Serial Number Changer". This program allows you to change the hard disk serial number without reformatting it.

Hard Disk Serial Number Changer unable to write to disk device

The name (Hard Disk Serial Number Changer) may be a bit misleading. It doesn’t actually change the hard disk serial number but the volume serial number. Below is how to use this program to change disk volume serial number (Volume ID).

Step 1. Download Hard Disk Serial Number Changer.

Step 2. Right click at HardDiskSerialNumberChanger.exe and select “Run as Administrator”.

Step 3. Click “Yes” on the UAC (User Account Control) warning message window.

Step 4. Choose the disk volume you want to change, type the new serial number (XXXX-XXXX) and press “Change”.

Hard Disk Serial Number

Step 5. Click “Yes” and reboot your computer.

Change Confirm

From above, we can see the process is quite straightforward, but sometimes you might receive an error message saying “unable to write to disk device”.

How to solve this problem easily?

To solve this problem, you need to ensure that you have launched this program as an administrator. Besides, some users also reported the following two disadvantages of Hard Disk Serial Number Changer:

1. It does not work on Windows 8 and Window 10.

2. It works on most hard drive with FAT/FAT32/NTFS format but unfortunately, it won't work on the new exFAT format volume.

Therefore, you can also check whether you have used this program to change the volume serial number in Windows 10 or Windows 8, or you are trying to change the serial number of exFAT drive.

Alternative to Hard Disk Serial Number Changer

Since the Hard Disk Serial Number changer does not work or pops out “unable to write to this disk in drive” in some cases, many users are searching for a Hard Disk Serial Number Changer to change hard drive serial number more easily. If you are one of them, we recommend you using AOMEI Partition Assistant Professional.

This software is more compatible than Hard Disk Serial Number, and it supports 32-bit and 64-bit of Windows 10/8/7 and Windows XP/Vista. More importantly, it can change FAT32, NTFS and exFAT volume serial number without reformatting hard drive.

Download Pro Demo Win 10/8.1/8/7/XP
Secure Download

Step 1. Install and run AOMEI Partition Assistant Professional on your Windows Computer. Right click the target volume and select “Advanced” > “Change Serial Number”.

Change Serial Number

Step 2. In the pop-out small window, you can input a set of new serial number for the selected partition, and click “OK”.

New Serial Number

Step 3. Then, click “Apply” and “Proceed” to commit the pending operation.


See? Within simple 3 steps, you can change hard disk volume serial number without any hassle.

Final words

In this article, we have discussed how to solve “Hard Disk Serial Number Changer unable to write to this disk in drive”, and shared a great Hard Disk Serial Number Changer alternative.

What’s more, AOMEI Partition Assistant Professional comes with other functions to help manage your hard disk better and more conveniently. For example, it can clone system disk to SSD with secure boot, convert disk to MBR or GPT partition style without deleting partitions, extend NTFS system drive without rebooting PC. If you are running Windows Server operating system, please try AOMEI Partition Assistant Server.