The Dell XPS 15 is one of Dell’s best-known premium Windows laptop families — not a cheap machine being rescued from the end of its life. In many cases it is still a strong, familiar machine with a good screen, solid keyboard, capable processor and valuable data already set up exactly how the owner likes it. The problem is usually storage. The original 256GB, 512GB or 1TB SSD can become too small, while older XPS 15 models may also have hard drive or battery-related storage limitations.

At ALVA PC, we upgrade Dell XPS 15 laptops with larger, faster SSD storage while keeping your familiar Windows setup intact. That means your files, folders, Outlook data, browser logins, accounting software and everyday layout can be kept where possible. The aim is not to return a different laptop — it is to return the same Dell XPS 15 you already know, with the storage bottleneck removed.

You can reserve your Dell XPS 15 SSD upgrade for £10. The remaining balance is only due after we send video proof showing your actual laptop working after the upgrade. You can also read our main Windows SSD upgrade service page for the wider process, pricing and service explanation.

The Dell XPS 15 family covers several generations including the 9550, 9560, 9570, 7590, 9500, 9510, 9520 and 9530. These are premium laptops — not budget machines — so many owners still have capable hardware that simply needs better storage to stay practical. The SSD is not soldered on any of these models, which makes the XPS 15 a strong candidate for an upgrade.

Older models such as the 9550, 9560, 9570 and 7590 typically use a single M.2 SSD slot and may also support a 2.5-inch SATA drive depending on the battery fitted. Newer models such as the 9500, 9510, 9520 and 9530 use a redesigned layout with SSD1 and SSD2 positions, making storage expansion more flexible.

For most customers, the best upgrade is a larger NVMe SSD — either replacing the existing drive or adding a second one where supported. This can improve boot speed, application loading and general responsiveness while giving the laptop enough space to remain useful without constantly managing files.

The words “Dell XPS 15” are not enough to confirm the correct storage upgrade. These machines may look similar from the outside but internally they can be very different. If you are not sure which Dell XPS 15 you have, you can still book the service — we check the exact model before confirming the upgrade route.

A slow Dell XPS 15 is not always caused by the processor. Storage can be the issue. On older units that still have a mechanical hard drive as the main Windows drive, the laptop can feel delayed even when the CPU, GPU and RAM are still capable. On SSD-based models, slowness can still happen when the drive is nearly full, failing, badly configured or too small for the workload.

Common symptoms include slow booting, long app launch times, delays opening Outlook, freezing during updates, slow file searches, poor performance when handling large folders and constant low-storage warnings. An SSD or hard drive upgrade is not a magic fix for every fault — but when storage is the bottleneck, the improvement can be very noticeable.

The XPS 15 is a premium laptop, so owners often find it frustrating that a machine this capable still feels sluggish. In most cases the hardware is fine. The storage is the issue.

Dell XPS 15 owners are not usually complaining about the laptop being a cheap, slow machine. The pattern is different — many people still like the screen, keyboard, build quality and performance, but the original storage no longer matches how they use the laptop.

Yes — on all the XPS 15 models covered here, the SSD is removable and not soldered. The exact upgrade depends on the model. Some Dell XPS 15 laptops use a single M.2 2280 SSD slot. The newer 9500, 9510, 9520 and 9530 models support two M.2 SSD positions, making them especially flexible for storage expansion.

This is why we do not expect customers to choose the exact SSD themselves. Choosing the wrong drive can lead to wasted time, return postage, missing brackets or a laptop that does not recognise the new storage. We check the correct form factor, capacity and installation route before carrying out the upgrade.

For most Dell XPS 15 owners, 500GB, 1TB or 2TB SSD upgrades make the most sense. A 500GB SSD is suitable for light use. A 1TB SSD is the best balance for most users. A 2TB SSD is better if you need to keep large project files, photo libraries or video editing work on the laptop at the same time.

The biggest performance jump happens when a Dell XPS 15 is still running Windows from a mechanical hard drive. A hard drive uses spinning platters and a moving read/write head. An SSD has no moving parts, so it accesses Windows files much faster. That difference matters more than many people expect.

On a hard drive, the laptop may technically be working but everything feels delayed. Windows takes longer to start, apps hesitate, and the system can feel busy for several minutes after login. After an SSD upgrade, the same familiar Dell XPS 15 can feel far more immediate. Even moving from a small, full SSD to a larger one brings a noticeable practical improvement.

Our Dell XPS 15 SSD upgrade service is designed to remove the uncertainty from the process. We check your exact model, confirm the storage layout, select a suitable SSD route, carry out the installation, migrate or reinstall Windows where appropriate, test the laptop and send video proof before the remaining balance is due.

This is especially useful if you are worried about choosing the wrong SSD, damaging the laptop, losing files, shipping the device or paying the full amount upfront without knowing the result.

For a wider explanation of how SSD upgrades work across Windows laptops, visit our main Windows laptop SSD upgrade page.