hdd problem

i have just bought 2 new hdds the 160gb one is my main system drive thats fine its a sata drive also i bought a new 1tb sata hdd it shows up in windows when i find it in admins tools,computer management,storage,disc management its syas unallocated and theres a white circle with a red line through it a bit like a no entry sign when i right click on the drive there is only properties and help not greyed out because its xp and a 1tb drive is there something i need to do to be able to partition the drive and use it im a novice but am willing to learn so any help would be greatfully recieved
cheers darkangel
and thanks for looking

 

Unallocated usually indicates that they drive has no partition info on it. Under disc management select the drive in the list below and you should have the option to make a Dynamic or basic drive. Select Basic and format the drive as NTFS. The little drop down is block size 512 being the smallest ideal for storage 4096 is for speed. Personally I set all my drives to 512. The only place I have seen where speed is needed is if you are manipulating large graphics (large 3d models) or compiling massive amounts of code. If you want to take the middle of the road select 1024 I found its speed/storage is more balanced.