Terry. Very sensible information. An ideal method is to have an additional partition on the hard drive with a separate OS that has no additions like Internet and other none music programs.
As an example my wife's PC has the normal WinXP Pro to run as normal with all the bells and whistles, but she has the option of booting to another OS on another partition that is delicate to here sewing machine programs with nothing else installed.
At any time she can boot from one OS to the other.

Graham UK