Ok so here is the deal, its really quite simple it seems that the external hard drive forgot what its system was. When I check all my hard drive say FAT 32 or NTFS. when I check this one doesn't have anything written down at all, the column for its file system is just blank. I ran stellar phoenix and it basically said it was either to corrupt or invalid. I'm not really sure what i should be doing, should I format it, and then run a file recovery software and hope for the best, or is there any way to remind it of what its file system was before the issue. It happened after a friend of mine connected it to a Wii. Also under properties it says its RAW. Apparently alot of hard drive have been forgettin their size, and it might of happened to this one, since its 500 GB but properties registers it as 0 bytes which was what i was hoping was the issue but when i ran HDD capacity Restore which i believe is the correct program for the drive just didn't show.