Hi, Ive added a 160gb western digital drive as a slave because windows tells me that "system" is 90% full. I intialized and formatted the slave and windows recognizes the drive and has allocatted it a drive letter but it now tells me that system is 99% full and new drive is empty. I thought that windows would just use the space on the new drive but I seem to be mistaken, do I have to move the partitions around ? I am worried about messing with the system partitions as I don't want to lose any programs. How can I get windows to use the space on the new drive for the systems? I hope I have made my problem clear, all help appreciated. Pete