After diagnostic, I have discovered that my Xbox 360 hdd is faulty. I need to replace it with new hdd. I would like to know how to load xbox os on hdd etc.

Hi

Possible cause could be a faulty or loosely connected USB accessories or Hard drive.
If you are not a technical person, I shall provide you step by step procedure that will assist you in resolving the issue or at-least finding out the cause.

Safety Tip :- Before disconnecting any device from XBOX, please make sure you have switched off and disconnected all the power cables from XBOX.

1. Unplug all USB-devices (like thumb drives, cooling fans, battery chargers, controllers) and memory units and turn on XBOX. (If it works then the possible explanation for this issue would be that one of these devices was loosely connected.)
2. If this does not fix the issue, you will have to remove the HDD from the XBOX and reseat it(Plug it back.). (To remove the HDD , press the button on the HDD and remove the HDD, To remove the HDD from a "Slim" Xbox 360, open the HDD door and pull the HDD out of the console. If there is no HDD, that means the your XBOX is defective.

For further assistance follow this link.
https://support.xbox.com/en-GB/xbox-360/errors/error-code-e68

Regards

Here is a webpage I have discovered that will explain how to use an external HDD on your xbox 360.

http://www.ehow.com/how_4486548_use-regular-external-hard-drive.html

Thanks and if this helps, please rate! :)

u cant the only way to transfer games and saves is by using a usb flash drive or a hdd transfer cable which are 15 pounds to buy

here is link to cable CLICK

Well here are few solutions:
1. You might have a modded(Flashed) console, which microsofts new fix destroys your profile/HDD/Console, so everything is gone to waste.
2. Replace your HDD, there might be a problem with it
3. Just buy a small Memory instead of a whole HDD to replace.
4. Buy a new 360.

Troubleshoot this problem on xbox. Sometimes you need to leave the xbox360 until the computer has fully loaded and is connected the the internet. It could be the cable your using may have a faulty conenction.

there's a possible hard drive issue on this.
try the ff:
-turn off your xbox
-remove your hdd from the xbox
-turn on the xbox while the hdd is removed
-if you're still getting the sme error code, your xbox needs to be repaired/replaced

-=hope that your xbox is still under warranty=- ^^

You have a problem with your Xbox. 3 Game discs arent all faulty.
Call a service agent and tell them your Xbox cannot read discs.

this only happens with gears of war 2?? ...if so your unlucky and got yourself a faulty disc..or if you watch a copied dvd that messes it up and you'll need a new one.

try deleting all of you updates. check this link: http://www.joystiq.com/2006/06/09/xbox-360-hdd-cache-clear-code-discovered/

that might help, otherwise i dont know what else cold help. good luck!

That's weird, if the Xbox needs a driver it should be installed or come on a Cd.

So the games don't play ?

Call support and threaten that you'll bring it back, it'll get them to help better.