Xbox Series X Error Code E105: How to Fix It

Q: What causes Xbox Series X error code E105?

Error code E105 is typically caused by interrupted system updates, corrupted system files, power outages during updates, or failing internal storage. It can also occur after improper shutdowns or hardware malfunctions.

Q: Can I fix Xbox error E105 without losing my games and data?

The offline system update method usually preserves your games and save data. However, if a factory reset is required, your locally stored games will be deleted but can be re-downloaded. Save data synced to Xbox Live cloud will be preserved.

Q: How do I download the Xbox Series X offline system update file?

Visit xbox.com/xboxone/osu1 on a Windows computer, select Xbox Series X|S, download the OSU1 file, and extract it to a NTFS-formatted USB drive. Make sure to place the files in the root directory of the USB drive.

Q: Why won't my Xbox Series X enter the Startup Troubleshooter?

Ensure you're holding the Pair and Eject buttons before pressing the Xbox button, and continue holding them for the full 10-15 seconds. Try using a wired controller if available, and make sure the console is completely powered off before attempting.

Abstract

Xbox Series X error code E105 indicates a system startup failure that prevents your console from booting properly. This critical error typically occurs when the system update process has been interrupted or corrupted, requiring an offline system update to restore functionality.