A USB external drive can hold Xbox Series X|S-optimized games, but it can’t run them, so you have to move those games back to internal storage or a Storage Expansion Card before you play. Here’s how to set up the drive as “cold storage” that holds games you can bring back in minutes instead of re-downloading them.
What Is USB External Storage on Xbox Series X|S?
USB external storage is a built-in console feature. There’s nothing to install. You plug in a standard USB hard drive (HDD) or solid-state drive (SSD), and you manage it from the console’s storage settings. It costs nothing beyond the drive itself, and it works the same way on Series X and Series S. It matters most on the Series S, which has less internal space.
The catch: Series X|S-optimized games are designed around the Xbox Velocity Architecture, and Xbox only supports running them from the internal SSD or an official Storage Expansion Card. A USB drive can store those games, but it can’t launch them.
What a USB drive can store vs. play
| Content type | Store on USB drive? | Play directly from USB drive? |
|---|---|---|
| Xbox Series X|S-optimized games | Yes | No. Move to internal storage or a Storage Expansion Card first |
| Xbox One games | Yes | Yes |
| Xbox 360 and original Xbox (backward-compatible) games | Yes | Yes |
| Media (videos, music, photos) | Yes, using the media-only option | Yes, through a media app |
If most of your library is Xbox One or backward-compatible titles, a USB drive is a real play drive for you. If you mostly play new Series X|S games, treat it as a shelf.
Before You Begin
Make sure you have:
- An Xbox Series X or Xbox Series S, updated to the latest system software
- An external USB HDD or SSD that supports USB 3.0 or later
- A drive with at least 128GB of capacity
- The drive’s original cable, ideally a short USB 3.0 cable
- A backup of any files already on the drive, because formatting erases everything
| Requirement | Details |
|---|---|
| Device | Xbox Series X or Xbox Series S |
| Connection | USB 3.0 or later, plugged directly into a console USB port |
| Minimum capacity | 128GB |
HDD or SSD?
Both work. The difference is transfer speed and price per gigabyte.
- External HDD (for example, a Seagate Game Drive or WD_BLACK P10 Game Drive): cheapest per terabyte. Best for a big cold-storage library you rarely shuffle.
- Portable SSD (for example, a Samsung T7 or WD_BLACK P50): costs more, but moves games between drives noticeably faster. In GamesBeat’s tests, a 49GB game moved back from an external SSD in about 2 minutes versus nearly 8 minutes from an external HDD.
Neither one runs Series X|S-optimized games. If you want to play new games straight off extra storage, you need a Storage Expansion Card. See our guide on how to install and use a Storage Expansion Card on Xbox Series X|S.
What about drives over 16TB?
They work. Xbox used to reject drives larger than 16TB, but since the February 2025 console update, the console formats a larger drive as multiple partitions of up to 16TB each, and each partition shows up as its own entry under Storage devices. A large drive that was formatted before that update has to be reformatted to use its full capacity.
Step-by-Step Guide
Menu names below match the current Xbox dashboard. Microsoft sometimes renames settings in system updates, so pick the closest match if a label looks slightly different.
Step 1: Connect the Drive to a Console USB Port
- Turn on your console and wait for the Home screen to load.
- Plug the drive into a USB port on the back of the console. The rear ports are the most reliable spot for a drive that stays connected.
- Connect it directly. Skip USB hubs, extension cables, and adapters.
- If the drive has a separate power adapter (most 3.5-inch desktop HDDs do), plug that in and switch the drive on.
Expected result: Within a few seconds, the console shows a prompt asking how you want to use the drive. If nothing appears, go to Settings > System > Storage devices to confirm the console sees it.
Tip: If you don’t get a prompt and the drive isn’t listed under Storage devices, jump to Fix #1 in the troubleshooting section.
Step 2: Format for Games & Apps (or Choose Media-Only)
The prompt gives you two choices.
- Format for games & apps: Prepares the drive to hold installed games and apps. This erases everything on the drive, and the drive then stays in Xbox’s own format.
- Use for media: Leaves the drive and its files alone. The console can read media from it, but you can’t install games on it.
To format for games and apps:
- On the prompt, select the option to format the drive for games and apps.
- Enter a name for the drive, such as “Cold Storage,” so you can tell it apart from internal storage later.
- Confirm the format.
If you skipped the prompt, you can format later:
- Press the Xbox button to open the guide.
- Go to Profile & system > Settings > System > Storage devices.
- Select the USB drive.
- Select Format storage device and confirm.
Expected result: The drive appears under Storage devices with its name and free space. The free space will be a bit lower than the number on the box. That’s normal formatting overhead.
Warning: Formatting wipes the whole drive, including PC backups, photos, and anything else. Copy important files to a PC first.
Step 3: Set the Default Install Location
By default, new games install to internal storage. You can change where they land.
- Go to Settings > System > Storage devices.
- Select Change install locations.
- Choose where new games and apps install: your internal storage, your USB drive, or a Storage Expansion Card.
Expected result: New downloads go to the location you picked.
Which should you pick?
- Series X|S-optimized games: Keep these on internal storage or a Storage Expansion Card. If they install to USB, you’ll have to move them before you can play.
- Mostly Xbox One or backward-compatible games: Setting the USB drive as the default is fine, since those games run from it.
- Apps (streaming, media): Internal storage keeps them quick to launch. They’re small anyway.
Step 4: Move or Copy Games Onto the External Drive
You can move games in bulk or one at a time.
To move several games at once:
- Press the Xbox button and select My games & apps > See all.
- Select Manage in the left menu, then select Storage devices.
- Select your internal storage (the drive you’re moving games from).
- Select Transfer.
- Check each game you want to move, or use Select all.
- Select Move selected to free up space, or Copy selected to keep a copy in both places.
- Choose the USB drive as the destination.
To move a single game:
- In My games & apps, highlight the game.
- Press the Menu button (three lines) on your Xbox Wireless Controller.
- Select Manage game and add-ons > Move or copy.
- Choose the USB drive and confirm.
Expected result: A progress bar shows in the queue. When it finishes, the game shows the USB drive as its location. A Series X|S-optimized game will now need to be moved back before it launches.
Step 5: Move a Series X|S Game Back to Play It
This is the step that makes cold storage worth it. Moving a game back is usually much faster than downloading it again.
- Go to My games & apps > See all.
- Highlight the Series X|S game stored on the USB drive.
- Press the Menu button and select Manage game and add-ons > Move or copy.
- Select your internal storage or Storage Expansion Card as the destination.
- Select Move.
- Wait for the transfer to finish, then launch the game normally.
Expected result: The game launches from its new location.
Tip: If internal storage is full, move a game you’ve finished out to the USB drive first. Swapping one out and one in is the everyday cold-storage routine, especially on a Series S. Our Series S storage guide covers what to clear first.
Configuration
| Setting | Where to find it | Default | Recommendation |
|---|---|---|---|
| Format for games & apps | Settings > System > Storage devices > select drive | Not formatted until you confirm | Format if you want to store games |
| Media-only use | Prompt shown when you connect the drive | Your choice at connection | Use it for a drive you also plug into a PC |
| Default install location | Settings > System > Storage devices > Change install locations | Internal storage | Keep Series X|S games internal; send Xbox One/360 games to USB |
Tips and Troubleshooting
Fix #1: Reconnect the Drive Directly
Why it happens: Loose cables, hubs, weak cables, and drives below USB 3.0 or 128GB often go undetected.
- Unplug the drive.
- Wait until the console is fully on the Home screen.
- Plug the drive into a different rear USB port, with no hub.
- Use the manufacturer’s original cable.
- Confirm the drive is USB 3.0 or newer and at least 128GB.
- Check Settings > System > Storage devices again.
Fix #2: Format the Drive When It Says It “Needs to Be Formatted”
Why it happens: The drive uses a file system the console can’t use for games, or it was never set up for Xbox.
- Copy any files you need to a PC.
- Reconnect the drive to the console.
- Follow Step 2 to format it for games & apps.
If you only want media on it, choose the media option instead and skip formatting.
Fix #3: Speed Up Slow Transfers
Why it happens: HDDs are slower than SSDs, and USB caps even fast drives.
- Avoid running a game while a large transfer is in progress.
- Keep the drive on a rear port rather than a front one.
- If you move games often, switch to a portable SSD. It moves games much faster than an HDD.
Fix #4: Move a Game That Won’t Launch From USB
Why it happens: It’s a Series X|S-optimized game. This is expected behavior, not a broken drive.
- Follow Step 5 to move it to internal storage or a Storage Expansion Card.
- Launch it from there.
If you’re tired of shuffling, a Storage Expansion Card is the real fix. It plugs into the rear expansion port and matches internal SSD speed.
Fix #5: Remove the Drive Safely
Why it happens: Pulling the drive during a transfer or while a game runs from it can corrupt data.
- Make sure no transfers are in the queue.
- Close any game running from the drive.
- Go to Settings > General > Power options and select Shut down (a full shutdown, not sleep).
- Unplug the drive after the console is off.
Fix #6: Update the Console for a Very Large Drive
Why it happens: Support for drives over 16TB arrived in the February 2025 console update, and a large drive formatted before then only uses part of its space.
- Go to Settings > System > Updates and install any pending update.
- Copy anything you need off the drive, then format it again (Step 2). The console splits it into partitions of up to 16TB.
- Check Storage devices. Each partition appears as a separate entry.
- If the drive still isn’t recognized, contact Xbox Support.
If a drive still won’t show up after these fixes, test it on a PC. If a PC can’t see it either, the drive or its enclosure is likely faulty.
Wrapping Up
A USB drive is the cheapest way to stop re-downloading games on a Series X|S. Treat it as a shelf, not a second SSD. A large external HDD is the best value if you just park games. Spend more on a portable SSD only if you swap games often or play a lot of Xbox One titles. If you want to play new Series X|S games straight off extra storage, a Storage Expansion Card is the only option, and it’s worth it for Series S owners who keep hitting the limit. If a drive keeps disconnecting or fails on a PC too, replace it before it takes your library with it.