By Emily / Last Updated December 19, 2019

“Trying to clone operating system from HDD to SSD”

“I am trying to clone my OS from a traditional HDD (initialized to be GPT) to a new SSD drive (also in GPT partition table) because the computer runs slower and slower on the hard disk drive. I thought the SSD drive can boost its boot speed and shorten the time to load applications and programs. So any one has any idea to finish this cloning task? Thanks a lot in advance.”

It is a help post from tomshardware forums. Are you also scouting for a way to clone OS from HDD to SSD, which is much faster in reading and writing speed? Then your Windows will take a shorter time to boot up and be ready to go in a flash. Besides, the installed applications will take shorter to load and folders/files will take shorter to open and save.

Comprehensive tool to copy Windows OS from HDD to SSD

To clone operating system like Windows 10, Windows 8, and Windows 7 from HDD to SSD drive and boot from the cloned Solid State Drive successfully, the easiest way is to adopt a professional disk cloning utility. But the large number of OS cloning software available on the market makes it a challenge to pick out a proper one. Among those countless options, AOMEI Partition Assistant Professional stands out. With it, you can enjoy the below benefits.

  • Transfer operating systems from MBR disk to GPT disk, GPT disk to MBR disk, GPT disk to GPT disk, of course, also from MBR disk to MBR disk.

  • Clone entire Windows disk to SSD by “Disk Copy”, which will copy every partition on the system disk to SSD.

  • Migrate only Windows partition to SSD using its “Migrate OS to SSD” Wizard, which will only clone Windows partition to SSD.

  • Copy operating system from larger HDD to smaller SSD as long as the destination SSD drive has enough space to hold the used space of the source OS disk or partition.

  • Boot from the cloned SSD drive after cloning completion in the right boot mode.

  • Align partitions on the SSD drive during the cloning process, which can help optimize the SSD performance.

Tutorials to clone operating system from HDD to SSD

As described above, AOMEI Partition Assistant provides you with two methods to copy operating system from HDD to SSD, so here we will show you how to do it step by step.


  • Both methods will wipe data from the target SSD drive, so back up important data on it in advance.

  • You can remove unnecessary applications or other personal data from the source disk or partition to make it smaller to fit the target SSD drive.

  • Make sure the destination SSD has an unallocated space which is equal or larger than the used space of the source disk or partition.

  • These two operations involve the system partition, so the operation will be completed under the PreOS Mode.

  • You can download the Free Demo Version for a free trial.

1. Migrate OS to SSD Wizard

If you just want to copy or migrate only Windows partition to SSD, this method is perfect.

Step 1. Install and run AOMEI Partition Assistant Professional. Click "Migrate OS to SSD " on the left side under Wizards. In the pop-out window, click "Next".

Migrate Os To Ssd

Step 2. In the next window, choose an unallocated space on the destination SSD, and then click "Next" to go on.

Select Space On Ssd

Step 3. In the pop-out window, you could modify the partition size, location, and drive letter on the new SSD, or just keep default settings and click “Next”.

Resize Partition

Step 4. Then, a helpful note for boot problem will show up. Read it and click “Finish” button.


Step 5. Hit on “Apply” and then “Proceed” to start transferring operating system from HDD to an SSD.


Tutorial 2. Cloning operating system to SSD by copying entire disk

If you want to move all partitions (Windows partition and data partitions) on the system disk to SSD, you can apply this method.

Step 1. Launch AOMEI Partition Assistant Professional. Click “All Tools”> “Disk Copy Wizard”.

Copy Wizard

Step 2. Select the way to clone operating system disk. And the “Disk Copy Quickly” is highly recommended because it only clones the used space on the source disk, which means you can clone larger disk to smaller disk.


Step 3. Choose the system disk as the source disk, and click “Next”.

Source Disk

Step 4. Then, select SSD as the destination drive. And it is advised to tick the option “Optimize the performance of SSD”. Click “Next”.

Target One

Step 5. In this window, you can adjust partition size on the SSD.


Step 6. Click “Apply”> “Proceed” to commit the pending operation.


After transfer operating system from HDD to SSD drive, you need to take the below extra steps to boot your computer from the destination disk.

Step 1. Reboot your PC and press a specific key (DEL,Esc, F1, F2,F8,F9,etc) constantly to enter BIOS.

Step 2. Navigate to Boot tab, use the arrow keys to select the cloned SSD as the prior boot drive. Save the changes and exit, and then restart your computer.

If you are cloning operating system from MBR disk to GPT disk, or GPT disk to MBR disk, you also need to change boot mode from BIOS to UEFI, or UEFI to BIOS.

Final Words

With AOMEI Partition Assistant Professional, you can easily clone operating system from HDD to SSD and then elevate the boot speed. Besides that, it offers more advanced functions like converting boot disk between MBR and GPT style without deleting partitions, recovering deleted system partition and more.