Hey Y,
IMHO, It does not matter if you can or can't. Just Delete the partition, create a new partition, format & reinstall your OS. This will be the best thing you can do for long term stability. Also if your PSU is not 350+ watts, upgrade it with a new Enermax or Antec 350 or more watt PSU. Good Luck
Peace Out.............tile
god knows your entire system setup & he would answer your questions if he could just stop laughing