Re: External HDD not working.
All I had to do was partition and format the HDD after using Active Kill Disk.
The way I solved it.
Used gParted Live CD, it's a Linux live CD for repairing Partitions.
Just booted the Live CD up,
Chose the HDD,
Chose partition parameters,
Partitioned to FAT32,
Viola it worked on my windows 7 computer lol.
If anyone has the same issue and reads this, I hope it helps you!