How to Move OS to SSD in Dell XPS without Reinstalling?

Want to move OS to SSD in Dell XPS without reinstalling? You can try AOMEI Partition Assistant Professional, a great OS migration software for Windows.


By Lucas / Updated on May 12, 2023

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Why Move OS to Larger SSD for Dell XPS?

Dell XPS series laptops, like Dell XPS 8900, XPS 8910, XPS 13, XPS 15, etc. are usually pre-installed with a 128GB or 256GB SSD. With more data you download and more programs you store, the internal SSD must be full now. It's no doubt that a 500GB or more SSD is the best choice to improve the performance of a computer. Besides, moving OS to a larger SSD for Dell XPS laptops will reduce the chance of corruption, shorten the boot time, and speed up the computer with a fast speed of reading and writing.

Dell XPS

If you're planning to install a new SSD with a larger capacity, there's one problem you'll confront: reinstalling OS. Reinstalling OS will cause data loss. You'll need to reinstall all your programs and restore all your data files (if you have a backup). Thus, if you can directly move OS to that new SSD, and keep the old disk as a data disk, that would be more convenient.

Choose A Larger and Suitable SSD for Dell XPS 13/15 Laptops

However, many users have no idea about how to move OS to SSD. After moving OS to SSD, you can use these data directly by setting up the first boot device with several steps. Compared with Windows reinstallation, it regards as a time saver.

The Dell XPS laptop’s SSD drive is much different from the traditional 2.5-inch SSD drive. To figure out which SSD you can do this replacement, you have to check your Dell XPS computer’s SSD belongs to which generation of Intel processor.

If your CPU’s model number begins with a 5 (eg: Core i5-5200U), you have Broadwell; if it begins with a 6 (eg: Core i5-6200U), you have Skylake. The two models require an M.2 type 2280 SSD drive. Consult the manufacturer of the Dell XPS computer if there is anything you don’t understand how to choose a larger and a suitable SSD drive for the replacement. Except for the larger SSD drive, you’ll need the best OS migration tool, M.2 SSD to USB adapter, your Dell XPS 13/15 laptop, and two screwdrivers.

Dell XPS OS Migration Software

How to move OS from a smaller SSD to a larger one for a Dell XPS computer? Use the OS migration tool. To determine, what kind of OS migration software you need, first check what your Dell XPS OS is? If your OS is Windows operating system, AOMEI Partition Assistant Professional could be your best choice.

Its "Migrate OS to SSD" function allows you to clone Windows and all other applications saved on the system drive without data loss. If you want to transfer all data including files and apps installed in data partitions, you can use its Disk Clone Wizard.

✔ AOMEI Partition Assistant fully supports all versions of Windows Vista, XP, 7, 8, 8.1, 10, 11 as well as MBR/GPT disk, BIOS, and UEFI boot mode.
✔ Using hot clone method, users don't need to reboot PC or cease the running programs.
✔ It can not only migrate OS to a larger SSD but also migrate OS from an HDD to a smaller SSD.
✔ During the operation, it can make 4K partition alignment for SSD for getting better performance.

▶ It’s available to download the demo version of AOMEI Partition Assistant Professional to have a free trial!

Download Pro Demo Win 11/10/8.1/8/7/XP
Secure Download

Move OS to SSD without reinstallation step-by-step

The following are the details about how to move Dell XPS OS to a larger SSD.

Step 1. Install and run the software, select "Clone"> "Migrate OS" on the upper panel to enter the next window, then hit "Next".

Migrate OS

Step 2. Choose the larger SSD drive as a target disk to move OS. Then hit "Next".

▶ Tips:
◆The target SSD must have the unallocated space; otherwise, you can’t go on next step.
◆ If the larger SSD drive has partitions on it, the program will prompt you to delete all partitions to get an unallocated space. Back up essential files before deleting them in case of data loss.
◆ If you would like to migrate OS from MBR disk to GPT disk, make sure your motherboard supports EFI or UEFI boot.

Step 3. Resize the newly created partition on the larger SSD disk by dragging the double-arrow or setting the value in the "Partition Size" box. Then press "Next".

Step 4. In the next interface, make sure you have noted how to boot from the larger SSD drive and then click "Finish" back to the main window.

Step 5. Preview the result of the OS migration on the "Pending Operations". To accomplish Dell XPS move OS to a larger SSD disk, click "Apply" on the toolbar to take effect.

▶ Notes:
In the meantime, if you want to transfer data partition to SSD drive, you may use "Partition Clone Wizard" to realize.
If you want to migrate OS to SSD in Windows Server 2022, 2019, 2016, 2012, and 2008, you can use AOMEI Partition Assistant Server.


After migration, the Dell XPS 13/15 SSD upgrade has not been finished. Please shut down your computer and swap the smaller SSD for the larger SSD drive with the two screwdrivers: remove screws and the bottom cap on the back surface, carefully take the smaller SSD drive out; put the larger SSD drive into, then tighten the screws, Put on the back cover; then turn on the Dell XPS 13/15 laptop, boot from the larger SSD disk. Here, Dell XPS move OS to a larger SSD successfully.

Lucas · Staff Editor
I prefer peaceful and quiet life during vacation,but sometimes I watch football match if my favorite club performs brilliantly in that season. And I love reading, painting and calligraphy, thus I send my friends festival handwriting cards every year.