on the first partition is my choice ,because when you load the program on the second partition it still hase to load system files ,and the system folder will be on the first partition ,thus windows will ahve to work to find the file ,kepping the second for data and video or music .
Iused to install my applications on the second partition or second drive. I thought I would save time after a system crash...just re-install Windows, and I would be good to go. I have found that won't work as when Windows is reloaded, it will be missing all the hooks to the applications, so I would have to re-install the applications anyway. Now I just use my second partion and second harddrive for data backup and images of the c-drive.
not to sure if it matters if its on the same HD but if its on a different HD then it might be a bit faster since the OS and pagefile are both usingthe harddrive.
If you have 512 or more of ram i suggest you turn the page file off since its a waste of HD space.
But if you want to modify the page file, Like to move it to a new HD
then do this:
1. open system properties(fastest way: windows key+pause/break key at same time):
2. Click the advanced tab
3. under performance click settings
4. click avancaded tab of the performance options window
5. under virtual memory click change
that will give one all the settings for the page file