How many? Thanks. This is foreign territory for this old malware battling warjog, but i want to get this 200GB Maxtor installed and sliced up into partitions soon so as to turn to the magnificient and benevolent FD-ISR to manage snapshot backups. I seen about all i need to see from reading the good reports on this FD so i'm heading for the plunge myself, but first i like some opinions on how to carve up this 200GB. I kind of envision at max going with a 100GB partition then 50/50 sort of split or else 80/80GB with a 40. I don't want too much space for defraggers to take hours or erasing program to soak up the entire day cleaning deleted files. Since i find i am limited in how far to take on rootkits/malware in face offs with some security programs in my testings because of possibility of corruption making for a lengthy repair or at the very least a overwrite re-install, i chosen i think to select FD-ISR finally. An overwrite reinstall preserves your programs but of course costs tons of time to reinstall programs cause paths have been removed due to the overwrite to clean up a buggered system. Any suggestions are welcome. My present situation. I want to keep my present small (30GB) Master Drive primary and move loads of proggys off it onto one of the yet-to-be-decided partitions of the 200GB as storage only. I want to use another partition to move FD-ISR snapshots/archives onto it in order to boot to it from a snapshot i'll make in the Master drive (30GB) once cleared and with fresh windows Pro XP. The remaining is of no consequence for this discussion i think. You see my main interest is setting things up for FD-ISR and want to know how much real-estate in this new drive is acceptable to store snapshots/archives. I'll learn how to perform the Magic later of course, but first things first and so thought this a good time to bring this to the board for opinions. Anyone?