GPT Disk Knowledge

Before we get to know the way to clone GPT disk, you may want to have a brief understanding about GPT partition style. That may make you understand the steps easier.

GPT stands for Globally Unique Identifier (GUID) Partition Table, which is a standard for the layout of the partition table on a physical hard disk. GPT is gradually replacing the old MBR (Master Boot Record) standard, which has some limitations that only supports hard disk up to 2TB in size, and up to four primary partitions.

GPT supports hard drive lager than 2TB and Windows can only boot from GPT on a UEFI-based computers. Unlike MBR, GPT hard disk allows you to create primary partitions up to 128 due to system limitation. So far, the most current computers support GPT standard, which is compatible with MBR. In addition, GPT disks only support 64-bit Windows system while MBR disks support both 32-bit and 64-bit Windows system. For more information about them, you may want to see MBR & GPT.

However, why is it necessary to clone GPT disk to smaller SSD drive?

Why Clone GPT Disk to Smaller SSD?

Compared with HDD, SSD is more reliable than traditional hard drive (HDD) due to its features, durability, faster speed, easy to carry, and no noise while working. Besides, the capacity of SSD drive typically smaller than HDD, is 128GB, 256GB, 512GB, 2TB, etc. Thus, if you have a GPT disk, you may want to clone GPT hard drive to SSD, usually a smaller SSD, to get a better performance as well as shorter boot time, etc.

GPT Disk Cloning Software

How to clone GPT disk to smaller SSD without installing Windows and applications? First of all, make sure what kind of SSD you can use in your computer. Then prepare some extracting tools and disk cloning tool. To clone GPT HDD to SSD successfully, you’d better look for a cloning software with better comprehensive performance.

AOMEI Backupper Professional is powerful backup and cloning software for popular personal Windows operating systems, like Windows 7, 8, 10, etc. It’s highly recommended by users due to its versatility, reliable execution capability, and intuitive interface. This software supports both MBR and GPT partition styles, even dynamic disks, hardware RAID, UEFI boot mode, etc.

When the smaller SSD is not be able to accomondate all stuff of selected GPT disk, the feature, System Clone, in AOMEI Backupper will help a lot. It will clone only system drive and boot related partitions to target SSD and let you enjoy the benefits of high technology.

How to Clone GPT Disk to Smaller SSD in Windows 7/8/10?

In the first place, please install and launch AOMEI Backupper Professional to have a try. Here is how to clone GPT HDD to smaller SSD:

Step 1. Connect the smaller SSD with your computer. Install and launch AOMEI Backupper Professional, on the main interface, select Clone > Disk Clone in turn.

Disk Clone

Step 2. Choose your GPT disk as source disk to clone, and press “Next”.

Source Disk

Step 3. Select the smaller SSD drive as the destination disk to save data from GPT HDD, then hit “Next”.

Destination Disk

Step 4. Check "SSD Alignment", and click “Start Clone” if you have confirmed the operation.

Start Clone

Step 5. (Optional) when the cloning process completes, swap the GPT disk with the cloned SSD, or change boot order to boot from the target. Please make sure you're in UEFI boot mode, otherwise, you may not be able to boot successful. You may want to know how to change Legacy to UEFI in BIOS.

The cost time will depend on the data size on GPT hard drive. Besides, AOMEI Backupper Professional allows you to create WinPE bootable media to boot your system after cloning and perform command line cloning to execute unattended tasks. The Technician License of AOMEI Backupper supports install the tool on unlimited PCs within one company. Give it a shot if necessary.