Profile data

Delete your Profile Save "for BF3" from your memory and when you get back on BF3 you should no longer get the "Corrupted Data" message. It usually occurs if you get off BF3 while it's Auto-saving, so keep an eye out
for that save icon before getting off.

Hi Cristian10000000, I hope you're doing great out there. I am an Independent advisor and I am here to help you in regard to your concern.

That's odd because the friend list as well as the achievements are all linked to our Microsoft account.

Let's check. Kindly sign in to https://account.xbox.com/profile and check if you can see your friend list as well as your achievements from there using the same Microsoft account.

First you have to delete your profile (but remember your e-mail address and password or it will be lossed) then you go to download profile and type in your e-mail address and password and everything will be restored. I just did it today when I formatted
my my memory (don't have to format)'

There may be an issue with the drive in general. I would move any remaining data back to your console and reformat the drive for use with the Xbox, or get a new drive. It also doesn't hurt to have a copy of your save files on the drive as well as the HDD
(this is what I do, just in case!).

One small question just to be sure. When you say that you have played offline all the time, do you mean that the console wasn't connected to the internet all the time or do you mean that you haven't played any online multiplayer games, but the console was
connected to Xbox live?

Since it will make a difference depending on what situation it was.