For the many machines here, sometimes they need have new OS, such as Windows 7, Win7 64-bit, Linux/Ubuntu, or just to install the old OS again in a new partition because the old OS is so clobbered with apps and start up apps that the machines become very slow to start up and use.
Is there a good strategy for doing that, such as, if the hard drive is 320GB, then partition some 10GB for testing to install new apps. And make 2 or 3 partition with 30GB or 60GB to install OS for real use. Such partition might be good to be made when the machine is brand new, since the hard drive will be mostly empty.
Is Vista or Win 7's partition app good enough for this purpose? Partition Magic was good but if Win 7's partition app is good already, then no need to use a 3rd party app.