Joe - partition the disk
Run multiple boots
OR - Boot from a disk - in the CD
Make it READ only
Boot from a USB
Dude - there are a dozen GOOD systems available....AND you still have Windows Seven to build your new machine upon.
Somewhere...in your experience ...you MUST have realized there are "far-better-trips" down the by-ways.
I.E. Perhaps you have a copy of "CakeWalk" ...that runs on Win98...and you purchased it for $300.00 in 98....AND it does everything (AND BETTER) because you know the loops.
FRICK - Dude - if it works WHY FIX IT????
My bread-knife is G-ma's from 1910, my kitten-knife is mom's from 1961, my pocket-knife is dad's about 1938....Invest in GOOD EQUIPMENT...and it will last through the generations. DOS 2.0 still works.