How to Fix a Corrupted XBox 360 Profileby Jason Candanedo ; Updated September 22, 2017
Items you will need
Xbox 360 console
Hard drive or memory unit
Xbox 360 controller
An Xbox 360 profile is what players use to identify themselves, sign in online, activate multiplayer games and recognize saved game files. But when you transfer your profile to a new Xbox 360, attempt to refresh your profile, use your memory card or hard drive in another console or when your system experiences an error, your Xbox 360 gaming profile might become corrupted, meaning that you cannot access and use it. When this occurs, do not lose hope! Xbox gives you a way to repair this problem--it's called the gamertag recovery feature.
Turn on your Xbox 360 console.
Access the Xbox 360 dashboard, go into “system settings," then into the “memory” option and find your gaming profile.
Delete profile if it is shown as corrupted. The profile is damaged.
Sign out of your profile if you are already on. Press the Xbox guide button, press the X button and select the option “Yes, sign out.”
Go into the “My Xbox” section of the dashboard.
Select the option “Recover Gametag” in the Xbox 360 dialog box. Press the A button on your controller to select the option. Follow the instructions to repair your profile.
Enter your Gamertag in the “Xbox Live Gamertag” dialog box that pops up.
When the process is completed, your avatar will appear in the “sign in” area of the dashboard.
It is not recommended by Microsoft that you do this process on an Xbox 360 console that is not your own. This is because you can potentially lose all of your saved games if this is done on a foreign console. Take and use your Xbox 360 memory unit when you are playing on another person’s console.
You will lose any achievements earned offline from your last connection when you recover your gaming profile.