How to remove your xBox account
You’ll have a generic MS account if you created one at one of their MS services. E.g. we had an xBox account too (so it seems) which is simply our Hotmail test account that belongs to MS too.
For more info, also see the MS Office entry at remove.org. Summarising: you can’t do it, so then the advice is to contact them by form, mail or telephone. Otherwise it may be enough to cancel the original account (perhaps a Hotmail or Live account). See the entry for those on remove.org too.
For cancelling xBox subscriptions see: http://support.xbox.com/en-GB/billing-and-subscriptions/subscription-management/cancel-xbox-live-gold-subscription
Helpful Trick: Obfuscate your profile info.
Because most accounts and profiles at xBox cannot be removed, we suggest you login and change your account and profile information altogether.
Make sure you are logged in to your account on the site and click on the profile or options settings. Locate the fields with your personal info (email, name, address) and fill in generic, random information instead. If you can only select from several fields, change anything personally identifying. If possible, use a homepage/URL field or long text field (such as Description) and put this line in it: http://remove.org/removal-requested. This may encourage webmasters and admins to create an easier removal outlet.
Helpful Trick: Removing online data
Helpful Trick: Remove third-party logins
If you signed up for xBox using a third-party login such as Facebook or Twitter, you probably want to revoke all access from xBox. Click here to find out how.