How can fix the corrupted profile in xbox 360?

You may have a corrupted profile. To resolve this, delete the profile that's stored on your Xbox 360 console, clear the system cache, and then download your profile again.

"The email address or password you entered is not valid" error ...

https://support.xbox.com > my-account > manage-account

Error 80151103 occurs when you download your profile to ...

https://support.xbox.com > help > errors > xbox-360
There's a problem with the security information for your Microsoft account. There's a problem with the Xbox Live profile that's stored on your Xbox 360 console.

Hi. Try this. You will lose any achievements you have earned since your profile went offline.

1. Power on your 360.
2. Access the dashboard, go into system settings, then into the memory option. Find your profile.
3. Delete the corrupted profile.
4. Sign out of your profile if you're already on it! Press the Xbox guide button press X and select sign out.
5. Go into "my xbox" on your dashboard
6. Select "recover gametag" in the dialogue box. Press A to select it. Follow the instructions to repair your profile.
7. Enter your gamertag in the Xbox live gamertag dialogue box that pops up
8. When process is completed your avatar will appear in the sign in area of the dashboard
   

You will need to recover your gamer tag. To do this, make srue you are not signed in under any profiles. Press the Xbox 360 Guide button, and then select Recover Gamertag.
Confirm that you want to begin the recovery process and, if you are prompted, confirm that you want to end the current session.

Follow the directions on the screen, and you should be back in the game in no time....if you had a passcode you will need to set it back up but all your achievements, etc will still be there.

um dont have the modded xbox hooked to the internet online bro, they see what that one tag does when you go online to gain ur achevements. so my point is to have ur Acheicement points show up on ur gamertag or your profile for instance, it has to be legit, that other xbox must have some file thats not allowing to use it cause that other xbox still has its internet hooked up
i think

I have never seen a fix for it without the Xbox Live.

1.Either backup your profile (GT) over at a friends house who has an xbox live connection.
2. You can always back up the Gamertag to your Pc...
3. Call Microsoft they always have a solution.

Did you take this out while it was saving something?

what you do is unplug your xbox and then unplug the power and if you have one a cooler system then blow on the ends to clear the dust then plug it back in and it should come up with a pop-up saying corrupted profile fixed ;]

IF your profile is not an xbox live account, your xbox profile cannot be recovered, however, if your account is an xbox live account all you need to do is have no one signed in, press the center xbox button, go down to recover account and enter your information

good luck i getting your problem solved with an attitude like that you certainly don't need our help. The problem was clearly too hard for you....

I have heared that if you just delete the profile, just the profile, everything will be just fine (note: This only works if your profile is on xbox live).
Just go to memor, then go into the saving device the corrupted profile is on. Then "click" on the botton that says profile and delete the corrupted profile. Remember; the profile will be a small save and not taking up most of your harddrive, look for something with MB size, not GB size. When you have done this, go to "recover gamertag" and do so for the profile you just deleted. After all this, your game saves and achivements should be present and working.