By Bryce / Last Updated December 9, 2019

The Case

“My laptop is with a 256GB hard disk drive with Windows 7 installed. I want to replace it with my newly bought 500GB M.2 SSD to speed up my computer. I am unwilling to suffer from the tedious work of Windows fresh install and settings reconfiguration. So, how can I replace HDD with SSD without OS reinstallation?”

Upgrade HDD to SSD without OS reinstallation via Backup and restore

Actually, it is not a tough task to upgrade HDD to SSD without reinstalling Windows. Firstly, you can transfer OS partition from HDD to SSD via backup and restore.

1. Use Windows built-in backup & restore function to create a system image file that covers system partition and system reserved partition.

2. Create a Windows bootable USB drive via Windows 7 USB/DVD Download Tool.

3. Boot your computer from the USB drive, connect SSD and restore system on SSD.

For detailed information, you can refer to Migrate Windows 7 from HDD to SSD.

Replace HDD with SSD without OS reinstallation via cloning

If it is still a little bit complicated and time-consuming to transfer Windows via backup and restore for you, cloning OS partition will be a nice choice to upgrade HDD to SSD without reinstalling Windows. Some SSDs come with data migration software, like Samsung Data Migration Software, you can use it to clone C drive to Samsung SSD easily. Nevertheless, what if the built-in cloning software not working or the SSD has no such tool?

Don’t worry and a great and reliable third party cloning tool, AOMEI Partition Assistant Professional can be helpful!

✔ Its Migrate OS to SSD function allows you to copy only OS related partitions to SSD effortlessly and effectively. Thus you can upgrade HDD to SSD without reinstalling Windows and other applications saved on OS partition.
✔ If you need to replace HDD to SSD without reinstalling everything including programs saved on non-system partitions, cloning OS related partitions only can’t satisfy you and you should duplicate entire HDD to SSD via its Clone Disk function.
✔ It supports kinds of SSD, covering Samsung, SanDisk, Seagate, Western Digital, Kingston, etc. And it can work well with Windows 10/8.1/8/7, XP and Vista.

Now, connect the SSD to your computer, install this software. Or you can download its demo version to have a try at first!

Clone OS related partitions to SSD

Step 1. Launch this cloning tool and click Migrate OS to SSD under Wizards.

Migrate OS to SSD

Step 2. Click Next to continue operation.

Introduce Next

Step 3. Choose an unallocated space on SSD and click Next.

Select Space on SSD

PS.: If there is no unallocated space, you can check I want to delete all partitions on the selected disk to migrate system to this disk. But you should know that delete all partitions means that all data saved on the selected disk will be erased.

Step 4. In this window, you can adjust the size of the partition being created. After that, click on Next icon.

Resize Partition

Step 5. Read the pop-up Note and keep it in mind. Then, click Finish.

Note

Step 6. You’ll be back to the main console. Click Apply and Proceed to commit operation.

Apply

Clone entire HDD to SSD

Step 1. Run AOMEI Partition Assistant Professional, go to All Tools > Disk Clone Wizard and choose one way to clone disk. The first option "Clone Disk Quickly" is recommended.

Clone System Disk Quickly

Step 2. Select your system disk as the source disk.

Select Source Disk Clone System Disk Full

Step 3. Choose the SSD as your destination disk and check Optimize the performance of SSD… to align SSD partition.

Select Target Disk Clone System Disk Quick

PS.: If there are files on the destination disk, it will prompt you that all data on this selected destination disk will be wiped out…, click Yes after confirmation. Then, click Next.

Step 4. Here you can edit partitions.

Clone System Disk without Resizing

PS.: If you clone hard drive to smaller SSD, the first option "Clone without resizing partitions" will be disabled.

Step 5. A Note about how to boot operating system from the destination disk shows up. Remember it and click Finish.

Step 6. In the main interface, click Apply and Proceed to perform HDD to SSD clone operation.

Notes:

  • This cloning tool supports you to migrate OS between MBR and GPT disks or clone MBR to GPT SSD / GPT to MBR SSD. However, you need to change boot mode after migration or clone.

  • Reboot is required as these operations (clone OS partition to SSD and clone entire HDD to SSD) involve system partition and need to be performed under PreOS Mode.


  • If you need to clone OS related partitions or entire disk in Windows Server, you can employ AOMEI Partition Assistant Server.