I am having two hdd 1 TB each. I want to install BackTrack 5 R3 on one of the hdd which is currently having windows installed but when I get to the 4th option during the installation the entire 1 TB HDD shows as blank. and the other one shows that it has 2 NTFS partitions. I am not sure why the hdd is showing as blank infact it has three partitions in it all NTFS.

Can any one help me on this.

The windows partition that I have is 50 GB. I want to delete that partition and install BT5 R3 on that.

Please help me on this.