I just downloaded eOS, and it seems to have created 3 partitions. One is 1 MB, creatively titled "Partition 1". Then there is "Swap Partition 2" which is taking up 492 GB of disk space, and there is "Swap Partition 3", which takes up 8.5 GB of space. Can I delete these? I'm running a 500GB hard drive, and I can't afford to have almost all of it partitioned off.