I have an Xbox 360 Slim 4gb with a 250gb Xbox HDD and I've used less than 100gb on my HDD and today when I went to download a demo, my Xbox begins a perpetual loop by resetting itself within twenty seconds of turning itself back on. What's so frustrating about this is that I'm well aware that all I need to do to fix the problem is clear up some space on my HDD (which I think is a bit ridiculous since it claims to have over 150gb free but thats not my main problem) yet I can't because my Xbox resets itself before I can get to the Storage part of the Xbox menu. I know it's the HDD because my Xbox works fine without it but this doesn't help me with my games as all of my saved files are on the HDD. I found a forum that posted what seemed to be the exact same problem, but the solution provided was only to get a new HDD; I don't want to buy a new one, as all of my saved data is on mine one plus I can easily solve the problem by deleting data on my current HDD, I just cannot access the HDD storage to do so.
I've had this problem before and was able to fix it after muchr grueling trial-and-error and have tried to reenact the same process yet it doesn't seem to work this time. I should add that when the Xbox turns on and asks me to choose a profile to sign into, the Xbox will continue to stay on, but the moment I do any other action, it only takes a few seconds before my Xbox clicks and resets itself. Please help otherwise my next problem with my Xbox is that I will need a new controller.