I was playing on my xbox ok last night, no problems, but I have turned it on today and first it locked up on start up and then froze on the main screen after restarting. I started it again and it wanted to do an update, I accepted the update but then it said it wanted 190mb of memory. I've checked my memory and it just says "unformatted". There are no profiles showing on my xbox and it won't let me download my profile as it says there is no space. I have tried restarting my xbox again and also removed the hard drive to clear it of any dust, but it still says unformatted. I have also followed a previous posts instructions to reformat the hard drive but this hasn't worked either.
Can anyone please give me any further advice?