How to move C:\Program Files to a different partition / drive.

The Program files are normally under "C" drive. But if you want to move it to different drive follow these instructions.

You should not try moving the present content - otherwise there will be trouble. I would advise rather that when you install software in future you take a Custom Install, and install it into a folder you make on the other partition / drive. But if you still want to try, do the following.

Start>Run>Regedit>Ok

Now navigate to:

HKEY_LOCAL_MACHINE
SOFTWARE\Microsoft\Windows\CurrentVersion
­
Change the "Program Files Directory " entry's data in the right column. Close the registry editor and restart the machine.

Don't forget to backup your Registry before doing this or anything in the Registry

How to back up, edit, and restore the registry in Windows XP