I recently saved a game that was burned onto an additional harddrive on my xbox. I had a friend from school mod it for me, but I no longer see him; it has the avalaunch dashboard. When I now load up the box it takes an intense amount of time and when it finally loads I see "E:/ Drive is full things will stop working." I tried to go through the filemanager to clear up some space but It has an error there and the drive seems empty. Is there any way I can fix it? Especially a way that would keep the files on there since I have no idea how to get them again should it be wiped.

Burn Frosty's xbox rescue disc to a dvd-r (minus sign) or cdrw and try cold-booting from it.