How to Upgrade a Handheld Gaming PC SSD Without Losing Games

Upgrading the SSD in a handheld gaming PC (like a Steam Deck, ROG Ally, or Legion Go) gives you more storage for your growing library, but the fear of losing save files and game installs can be intimidating. This guide walks you through the process safely—cloning your old drive to the new one, swapping the hardware, and verifying everything works—so you keep all your games, settings, and progress.

What You’ll Need

New SSD: M.2 2230 NVMe (the size used in most handhelds). Check your device’s spec for supported capacities and interface (PCIe 3.0 or 4.0).
USB enclosure for M.2 2230 SSDs (or a USB-to-NVMe adapter).
USB-C hub or adapter if your handheld only has one USB-C port.
Small Phillips-head screwdriver (usually #00 or #0).
Plastic pry tool or guitar pick (for opening the back cover).
Anti-static wrist strap (optional but recommended).
Another computer (Windows, Mac, or Linux) to perform the cloning.
Free cloning software: Clonezilla (Linux-based, works with most OSes), Macrium Reflect Free (Windows), or dd (Linux/macOS).

Step-by-Step

Back up your saves (optional but safe). Even though cloning copies everything, a separate backup is your safety net. On Steam Deck, use the Steam Cloud (right-click game > Properties > Installed Files > Cloud). For non-Steam games, copy the save folders to a USB stick. On Windows handhelds, games often sync via Xbox/Steam/Epic cloud, but manually copy any local saves (e.g., documents folder).
Connect the new SSD to your computer. Insert the new SSD into the USB enclosure and plug it into your computer. If your computer doesn’t recognize it, check if the enclosure needs drivers or if the SSD is seated properly.
Prepare the cloning software. Download and install the cloning tool of your choice. For Clonezilla, you’ll need to create a bootable USB drive with the ISO. For Macrium Reflect, just install it on Windows.
Clone the old drive to the new one. In the cloning software, select the source drive (your handheld’s internal SSD, which should appear as a disk) and the destination (the new SSD in the enclosure). Ensure you choose “Clone Disk” (not “Copy Partition”) to preserve the boot loader and all partitions. Start the clone. This can take 30 minutes to a few hours depending on data size. Do not disconnect anything during this process.
Verify the clone. After cloning, disconnect the new SSD. On your computer, if possible, boot from the new SSD via USB to confirm it works. If not, skip to the next step—verification will happen on the handheld.
Power off the handheld and remove the old SSD. Turn off your handheld completely (not sleep). Remove the back cover using the pry tool—look for clips along the edges. Disconnect the battery if possible (some models have a connector). Locate the M.2 SSD (usually under a metal shield or heat sink). Remove the screw holding it down and gently pull the SSD out at an angle.
Install the new SSD. Insert the new SSD into the M.2 slot at a 30-degree angle, then press down and secure it with the screw. Reconnect the battery, replace the back cover, and snap it into place.
Power on and verify. Turn on the handheld. It should boot directly to your OS with all your games and files intact. Check storage in settings to confirm the new capacity is recognized.
If it doesn’t boot: See the Troubleshooting section below.
Repurpose or wipe the old SSD (optional). Once everything works, you can format the old SSD to use as external storage, or keep it as a backup.

Common Mistakes

Buying the wrong SSD size. Most handhelds use M.2 2230 (22mm wide, 30mm long). Some older models might use 2242. Always check your device’s manual.
Cloning to a larger SSD but not expanding the partition. Some cloning tools copy the partition size exactly, leaving unused space. After cloning, you may need to expand the main partition using disk management tools (e.g., Windows Disk Management, GParted).
Forgetting to disable BitLocker or encryption. On Windows handhelds, if BitLocker is enabled, you’ll need to suspend it before cloning, or you’ll be prompted for a recovery key after the swap. Disable it temporarily in Settings > Privacy & Security > Device Encryption.
Not disconnecting the battery. This can cause static damage or short circuits. Always disconnect if possible.
Forcing the SSD into the slot. If it doesn’t fit, it’s likely the wrong size or orientation. Never force it.

Tips

Use a high-quality USB enclosure. A cheap one might not support UASP or have poor cooling, causing slow cloning or failures.
Keep the handheld plugged in during the swap. Even though it’s off, static discharge is less likely if it’s grounded.
Check your warranty. Opening the device may void the warranty. Some manufacturers allow upgrades without voiding, but check first.
Take a photo of the inside before disconnecting anything. This helps you remember where cables go.
For Steam Deck specifically: The SSD is under a metal shield that’s held by a screw. You don’t need to remove the heat sink, just the shield.
If you’re not comfortable cloning, consider a fresh install. You can re-download games and use cloud saves, but you’ll lose local settings and non-cloud saves.

Troubleshooting

Handheld doesn’t boot after swap. First, check that the SSD is fully seated and the screw is tight. If it still won’t boot, the clone may have failed. Reconnect the new SSD to your computer and verify the clone with the software’s “Verify” option. If it’s corrupt, redo the clone.
Boots to a black screen or login loop. This often happens with Windows if the EFI partition wasn’t cloned correctly. Boot from a Windows recovery USB and run “Startup Repair”. On Steam Deck, you may need to reinstall SteamOS (see below).
Storage shows less than expected. The SSD is likely fine, but the partition wasn’t expanded. Use a partition manager to extend the main partition into the unallocated space.
Device gets very hot. The new SSD may not have a thermal pad or heatsink. Some handhelds require transferring the heatsink from the old SSD. Check your device’s teardown guide.
Steam Deck stuck on SteamOS logo. This can happen if the clone didn’t include the recovery partition. You can reinstall SteamOS by downloading the recovery image from Valve’s site, writing it to a USB, and booting from it. Choose “Reinstall SteamOS”—this will preserve your games and settings (it only reinstalls the OS).
Windows asks for a BitLocker recovery key. If you didn’t suspend BitLocker, you’ll need the recovery key (saved to your Microsoft account). If you don’t have it, you’ll need to reinstall Windows.

Frequently Asked Questions

Will cloning my SSD void my warranty?

It depends on the manufacturer. Some allow user upgrades without voiding, while others require service. Check your device’s warranty policy before opening.

Can I use a larger SSD than what came with the device?

Yes, most handhelds support up to 2TB or even larger, as long as it’s M.2 2230. Check the official specs for the maximum supported capacity.

Do I need to reinstall SteamOS or Windows after swapping?

No, if you clone the drive correctly, you don’t need to reinstall. The clone copies the entire OS, so it boots as before.

What if I don’t have a second computer to clone?

You can use the handheld itself to clone, but it’s tricky because you can’t have both drives connected at once. Some handhelds have a microSD slot—you could clone to a large microSD, then to the new SSD, but that’s slow and error-prone. Better to borrow a computer or use a USB enclosure.

Is there a risk of losing my saves during cloning?

If the clone is successful, no. But to be safe, always back up saves to the cloud or a USB stick before starting.

Can I use an external SSD instead of upgrading the internal one?

Yes, you can install games on an external SSD via USB, but it will be slower and less portable. Upgrading the internal drive is the better long-term solution.

General steps for current mainstream versions; menus can differ by device and version. See the disclaimer or report an error.

More in this bed

The whole Tech How-To bed →