By Emily / Last Updated October 17, 2019

“Can I migrate OS to SSD from an HDD?”

“Hello, everyone. Recently I obtained a new 2TB SSD and I would like to migrate my operating system into it from my old HDD, and only my OS partition over to it, so that I can boot from it more quickly than from HDD. But I am wondering is it possible to move Windows drive from an HDD to an SSD without reinstalling applications and programs from scratch. Thanks in advance!”

Best tool to move only OS partition to SSD

In order to realize operating system migration, some users might turn to a disk cloning software to clone the entire hard disk to another one. In such a way, not only the OS partition but also other data partitions on the source disk would move to the new disk. Quite a painful and slow process!

Fortunately, there is a professional disk manager software named AOMEI Partition Assistant Professional. It can enable you to migrate only OS partition to SSD drive from HDD instead of copying the whole disk. More importantly, you can make a 4K alignment on the destination SSD drive during the migration process to optimize SSD performance.

Step-by-step guide to move OS drive to SSD in Windows 10/8/7

Now, we will show you how to migrate OS to SSD windows 10via AOMEI Partition Assistant Pro as an example.

Before proceeding, you had better make the following preparations:

> Backup system: When the OS migration goes wrong caused by some unexpected issues like power failure, SSD connection getting loose and so on, you can restore the system easily.

> Shrink the system partition: if your SSD does not have a large capacity, you can shrink the system drive by deleting your personal files to make it as "small" as possible to fit your SSD.

> Make sure the destination SSD has an unallocated space which is equal or larger than the used space of the OS partition.

> Ensure your motherboard supports UEFI boot mode if you are planning to transfer OS from an MBR disk to a GPT SSD drive since you will need to change boot mode from Legacy BIOS to UEFI after migration. If it doesn’t support, the Windows will fail to start or boot from the SSD.

Steps to perform OS transfer in Windows 10/8/7:

Step 1. Install and run AOMEI Partition Assistant Professional in Windows computer. Click “Migrate OS to SSD” in the left panel and click “Next”.

Migrate Os To Ssd

Step 2. Select an unallocated space on the destination SSD and click “Next”.

Select Space On Ssd

Step 3. In this window, you can resize the partition just being created on the SSD drive if necessary. Then, click “Next”.

Resize Partition

Step 4. A note about how to boot OS from SSD or HDD will appear, you can read it and click “Finish”.


Step 5. Back to the main interface, click “Apply” on the top right corner to commit the operation.


Now, your system drive is moved to the SSD. Next, you can wipe the original HDD completely via a hard drive eraser if you want to sell it to a stranger.

Final Words

Compared with performing a clean Windows 10/8/7 installation on the SSD drive, using AOMEI Partition Assistant Pro to migrate only OS partition to SSD is much easier and more time-saving. What’s more, this versatile software can handle other disk/partition management like extending system partition, converting dynamic disk to basic without data loss, allocating free space from one partition to another, etc