A guy booted me out of Xbox Live.

click on the gamertag and file complaint for tampering with xbox the investergation team will look into it and if they find something needs to be done they will take the action required

Hey there! Sorry to hear about the rough experience.

Be sure to check out this info regarding Denial of Service Attacks and what you can do. Resetting your modem and router can help improve your connection, and filing a complaint on the user will allow Enforcement to investigate.

I have been threatened to be booted offline and have been told someone knows my IP address and real address. How can anyone help to get this guy banned online forever?

All complaints are reviewed by the Enforcement Team though of course they do have to do a detailed investigation first, if people report accurately people's activities that infringe the TOS then action will be taken where necessary.

I'm willing to bet they're just bluffing and spewing hot-air though: the technical knowledge of such people tends to be limited at being able to spell "IP".

If you feel your account has been compromised then you should contact Xbox Support as soon as you can.

This is the 15th time i got booted offline, why can't you guys update xbox and have a stronger security system. This is ***! I'm not paying 10 dollars a month because of people who are mad over a game. Do something about because this is BS

FYI MS does not have any control over DDoS attacks as the person that bumps you offline is bumping your ENTIRE net off not just live.  all you can do is report the users that are doing the bumping then either reset your connection to the net (unplug modem and router wait a few min then plug them back in) or contact your ISP.  

Hey there ArabianBarbieee!
[quote user="ArabianBarbieee!"]why can't you guys update xbox and have a stronger security system.[/quote]The security system has nothing to do with why you, as a client, experience a DDoS, or DoS attacks. 

You see, the holy grail of communication on the Internet has been to allow peer-to-peer communication techniques without the requirement of any centralized/dedicated servers or services. Most gameplay network architecture is handled by peer-to-peer topology techniques, which means that each game client communicate directly with other users clients.

[quote user="ArabianBarbieee"]Do something about because this is BS[/quote]From a legal, but foremost, technical perspective, this is not within microsoft's realm of responsibilities.

You'll have to reach out to your ISP, partly to have them issue you a new unique public IP address, but also, if they are able to lift you a helping hand, in regard to your matter.

From your console, Block, Mute, Avoid all future communication with this user. Here's how!

same thing happened to me a few days ago and is still going on for me 2 DDoSers kept bothering me on WaW what do I need to do change my IP address but idk how to

Please don't bump old threads. As stated above, you'll need to contact your ISP.