Easily Replace HDD with SSD to Gain Better Performance

September 28, 2016

This guide will show you how to replace HDD (hard drive) with smaller SSD in Windows 10/8.1/7/XP without reinstalling everything using AOMEI Partition Assistant.

If you have had your current computer for many years, you will find the performance of the computer is rebuking dramatically. How can you do to optimize its performance without reinstalling your present system? using SSD migration freeware to replace HDD with SSD could be the most advisable way for you.

The reasons why you need to replace HDD with SSD?

The differences between HDD and SSD make users prefer to SSD. One of the most outstanding differences is that SSD has no moving parts, while a HDD is made by mechanical material which has spinning platters surrounded by read/write heads. When accessing data the heads must move over the area of the platter, which will increase the data accessing time. However, for SSD the data is stored on memory chips, so when accessing data, there is no need to wait for platters to spin up. With these differences, you can benefit much from installing OS on SSD. So replacing HDD with SSD is a wise choice for you.

SSD has other advantages such as less power usage, less noisy and more reliable. In a word, SSD demands the computer users who are looking for the improvement in performance. However, SSD has limited lifetime, you might as well learn to extend SSD lifespan for later use. Many users prefer to use it. Maybe SSD will eventually replace HDD in the future.

What Things can you replace from HDD to SSD?

As everyone knows, SSD is much more expensive than HDD, so in order to help you spend less money to get most, we advise you only to migrate OS to SSD with 4K alignment. In this way, you can enjoy the good performance without worrying high cost. It is best of both worlds for you.

AOMEI Partition Assistant Standard is free but professional software designed for the users who need to manage their partition safely and easily. This software has a feature called "Migrate OS to SSD or HDD Wizard" which can help you migrate your OS from old hard disk drive to SSD without losing dada and reinstalling your operating system. The following will show you the detail how to migrate OS to SSD using free SSD migration software.

Before you do:

  • Make sure your destination SSD has an unallocated space which is equal to or larger than the used space of current OS partition.
  • If you would like to migrate OS from MBR disk to GPT disk, make sure your motherboard supports EFI or UEFI boot.

Step1: Download, install and launch the software. Click "Migrate OS to SSD or HDD" on the left side. And then click "Next" in the pop-up window.

Step2: Choose an unallocated space on SSD as destination place, and then click "Next".

Step3: In the window, you can move the bar to the left to decide the size of new partition on SSD and then click "Next"

Step4: click "Finish" to read the note about "Boot Operating System". And then you will return the main interface.

Step5: if you want to perform this operation, please click "Apply"

You may want to learn how to free up disk space on SSD as well because you are likely to get low disk warning if your SSD isn’t big enough. Of course, if you can afford the large capacity of SSD, you can choose to completely replace HDD with SSD in laptop. If you want to do like that, you need to clone your disk to SSD at first. With this freeware you can also clone HDD to SSD easily. Last but not least is that this software has other useful features for your partition management such as merging partition, converting disk between MBR and GPT, making bootable CD and more features to know.


  • If the operation involves the system partition, the operation will be completed under the PreOS Mode.
  • If you migrate OS between MBR and GPT disks, please enter BIOS and change boot setting (about boot setting, please check your motherboard computer manual) when OS migration is completed.
  • If there is no unallocated space on the destination disk, you can delete useless partition or shrink a large partition to generate some unallocated space.

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