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Copy OS to SSD | Clone HDD to Smaller SSD

Updated on Jan 10, 2019 by Abby Haines to Partition Manager

Tried and true solution to migrate Windows 10/8.1/8/7 to SSD can be found if you keep reading. EaseUS partition tool enables you to copy OS to SSD instead of clone the entire HDD to save your disk space.

Can I copy OS from HDD to SSD

I am currently trying to replace my 1 TB Western Digital Blue SATA HDD with a 128GB SSD for better performance. As you can see, the SSD will be lack of sufficient storage space if I clone the whole HDD. So I figured that I could only copy OS (both the system and boot partition) to SSD and keep everything else on the HDD. I have looked on the Internet for a solution for a long time but I couldn't seem to find a reliable one. Can you help?

Why you need copy OS to SSD

Usually, transfer OS from HDD to SSD can be a slow and painful process. It might cause an issue and cost you an entire day even a weekend or longer to reinstall all your applications and settings. EaseUS partition tool is a professional software allows you to safely transfer all data on system and boot partition from HDD to SSD with its "Migrate OS to SSD/HDD" feature. It is easy-to-use and making system transfers easy and safe.

It is possible to clone a larger disk to a smaller one, provided that the smaller hard disk has enough capacity to fit the contents of the system and boot partition of the larger disk. If C drive is larger than the SSD, you can transfer some applications to other drives then migrate OS to SSD.


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 Windows 10 is supported

Note: The operation of migrating OS to SSD or HDD will delete and remove all existing partitions and data on your target disk. If you saved important data there, back up them to an external hard drive in advance.


Step 1: Run EaseUS Partition Master, select "Migrate OS" from the top menu.

select migrate os

Step 2: Select the SSD or HDD as the destination disk and click "Next".

Warning: the data and partitions on the target disk will be deleted. Make sure that you've backed up important data in advance. If not, do it now.

Then click "Migrate" and "OK" to continue.

select the destination disk

Step 3: Preview the layout of your target disk. You can also click the disk layout options to customize the layout of your target disk as you want. Then Click "OK" to continue.

preview the lay out

Step 4: A pending operation of migrating OS to SSD or HDD will be added. Click the "Execute Operation" button and click "Apply" to start migrating your OS to a new disk.

apply the process
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 Windows 10 is supported