How to Clone GPT System Disk to SSD and Boot from it Successfully

Are you looking for a way to clone GPT system disk to SSD? Fortunately, you've come to the right place. You can find a professional clone tool from the article to clone GPT system disk to another drive without reinstalling.


By Michael / Updated on May 12, 2023

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MBR and GPT  are two different partition styles, MBR is booted by BIOS, while GPT is booted by UEFI. They are used to store various data on the hard disk, including the Windows operating system. When a new disk is initialized, one of the partition styles must be selected. The initialized disk is called MBR disk or GPT disk.

According to the current mainstream trend, using GPT disk is a better choice than MBR. Because GPT disk have advantages in partition size, number of partitions. As a new partition style, GPT has gradually replaced MBR.

SSD is short for Solid State Drive. Compared to HDDs, SSDs have very clear advantages in speed, noise, form factor, ruggedness or fragmentation. So when the disk is GPT HDD, users may want to clone GPT system disk to SSD for better performance.

Windows doesn't have a built-in cloning tool, so we need to turn to third-party software. I recommend AOMEI Partition Assistant Professional  for you, which is a powerful cloning that can help users clone GPT to MBR/GPT disk without data loss. It provides two cloning methods: Clone Disk Quickly and Sector-by Sector clone. The former allows you to clone GPT disk to smaller SSD, and the latter allows you to clone the entire original disk.

In addition, if you just want to transfer the Windows OS to the SSD, the "Migrate OS to SSD" feature can help you migrate the system and system-related data to the SSD, and keep other data on the source disk.

Please download the Demo version to try how to clone GPT system disk to SSD with AOMEI Partition Assistant Professional, but the final result can only be previewed.

Preparations before cloning:
1. Please make sure your SSD has been initialized, otherwise the SSD will not be recognized by the computer.
2. If your PC has only one hard drive slot, then you may need to connect the SSD to the PC via a SATA to USB cable; if your PC supports multiple hard drives, you can directly install the SSD into the PC.

Download DemoWin 11/10/8.1/8/7/XP
Secure Download

Step 1. After downloading AOMEI Partition Assistant Pro, open it. Right-click the GPT disk and select “Clone Disk”.

Clone Disk

Step 2. Choose the “Clone Disk Quickly” and click on “Next”.

Clone Disk Quickly

Step 3. Select the destination SSD and click on “Next”. You can tick the option “Optimze the performance of SSD” to improve its performance better.

Select Destination Disk

Step 4. Here, you can choose “Fit partitions to entire disk” or “Edit partitions on this disk” option to adjust the partition size on the SSD drive. Since the destination disk is smaller than the source disk, the “Clone without resizing partitions” option is unavailable.

Edit Disk

Step 5. A boot note will pop out. Read it carefully if you need and click “Finish”.

Boot Note

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


Once this process is complete, you can restart your computer, enter the UEFI to change the boot order, and use the cloned SSD as the first boot device, so you can  boot the computer from the SSD successfully. If your SSD is MBR partition style, you need to change BIOS to UEFI before the SSD be booted.  


With just a few easy steps, you can clone GPT system disk to SSD successfully with the help of AOMEI Partition Assistant Professional Edition, this is the magic power of it. If you haven't tried it, please hurry up for a trial!

If you want to use this software on Windows Server, please try the Server edition.

More features I wish you visit its office web: /manual.html.

Michael · Staff Editor
Michael is a professinal editor of AOMEI editor team.