Xbox Error Code 0x80070015 — What It Means & How to Fix It

What Does This Error Mean?

Error 0x80070015 means the Xbox cannot read from a storage device. This usually points to an issue with an external USB drive, disc, or internal storage. The device may not be properly connected, formatted correctly, or may be failing.

Affected Models

Xbox One
Xbox One S
Xbox One X
Xbox Series S
Xbox Series X

Common Causes

An external USB hard drive is not properly connected or has been disconnected unexpectedly
The external drive is formatted in a file system the Xbox does not support
The USB port on the Xbox is damaged or not providing enough power
The external drive is failing and has developed read errors
A game disc is scratched or dirty and cannot be read by the disc drive

How to Fix It

Unplug the external drive, wait 10 seconds, and plug it back into a different USB port on the Xbox. Make sure the cable is firmly seated at both ends.

A loose USB connection is one of the most common causes of this error.
Try connecting the drive to a computer to see if it is readable there. If Windows cannot read it either, the drive itself may be failing.

If the drive works on a computer, the problem is the connection to the Xbox, not the drive data.
Format the external drive for Xbox. Go to Settings > System > Storage > External storage. Select the drive and choose Format for games & apps. Note: this erases all data on the drive.

Xbox requires drives to be formatted in a specific way. A drive formatted only for PC will not work for game storage.
Use a powered USB hub if the drive requires more power than the Xbox USB port provides. Some large external drives need more power than the Xbox's USB ports can supply.

Xbox USB ports provide 900 mA. Some 3.5-inch desktop drives need a separate power adapter.
If the error occurs with a disc, clean the disc with a soft lint-free cloth wiping from center outward. If the disc is heavily scratched, the game may need to be replaced.

A disc that works in another console but not yours may indicate a failing disc drive laser.

When to Call a Professional

If the error appears with the internal storage and not an external drive, the console may have a hardware fault. Internal storage issues require professional repair. Contact Xbox Support or take the console to an authorized repair center.

Frequently Asked Questions

What file format does Xbox require for external drives?

Xbox uses its own storage format called XBFS for game and app storage. When you format a drive through the Xbox settings, it sets up this format automatically. You cannot manually format a drive on a computer to work as Xbox game storage.

Can I recover data from a failing external drive?

If the drive shows up on a computer, you may be able to copy files off it before it fails completely. Acting quickly is important — a failing drive can stop working entirely at any time. Game saves are stored in Xbox cloud storage and are not lost if a drive fails.

What size external drive works best with Xbox?

Any USB 3.0 drive from 256 GB to 16 TB is compatible. For Xbox Series X|S, a 1 TB to 2 TB drive gives a good balance of space and cost. A USB 3.0 drive is required — older USB 2.0 drives are too slow for gaming.