P5 better to install to main drive , separate partition or separate drive? And does the speed of the hard drive matter? ata 133 or ata serial?

I installed ALL programs in main partition with operation system because some files of installed program is also in this partition with OS.

Now for a counteracting viewpoint.... :P Personally, I would install Poser on a seperate physical drive. At the very least, I would have my OS on a smallish, (2-5 gig) partition, and put nothing else on there except plugins that -have- to be placed into the OS directory structure. That way, all you have on your C: drive is the OS and the space for a multi-gig swapfile. That C:Program Files is =not= the best place to install things to, as it is defined by Windows as part of the Windows directory structure. And if something serious enough happens to the Win install, it could corrupt, destroy, or render inaccessible everything in there, forcing you to reformat the HDD. P4 has no registry entries, so you could drag the whole shebang off of one drive onto another; P5 -I think- only has registry keys for the InterLok protection scheme, and that should have been de-coupled with SR-2.1 (but I haven't tried it, so I can't say for sure). Always keep in mind that the default installation paths are set up with the assumption that the user hasn't a clue, and tends to walk on their knuckles on a regular basis. And you have to keep the fact that modern HDD's are so large that creating a true back up is a monstrous task in mind; even if you burn DVD's, that would still be 10 disks (at around $3 a pop currently) to image a 40 gig HDD. And that is getting to be a small one, by today's standards. The safest thing is to use multiple hard drives, and map out multiple partitions on them and their functions, and scatter your applications. That way one partition going bad won't cost you -everything-. You also preserve your data from the nigh onto inevitable Windows crash and burn. As for drive type... Faster is always better, but I believe that SATA I as it stands has benchmarked at only slightly faster that UDMA 133 in the few real world tests that have been done. That's why one of the chipset makers has already announced a SATA II controller It may be the future, but for now it's still a newborn, and doubtless has teething problems yet to solve, including price and availability.

I use a 20GB hard drive for Windows XP, and everthing but Poser. Poser 4 is installed on a 30GB hard drive, while Poser 5 is installed on a 40GB hard drive. I like to use simple installation paths such as "Poser4" & "Poser5." That saves a lot of work whenever I install something. DAZ stuff is fantastic because the installation automatically searches for "poser.exe," and allows you to choose which one gets the DAZ installation.