Nothing is stopping you from playing it again. I still say, despite my thought of TOG’s version being the best, that this is still a very good interpretation of the King’s Quest universe, flawed though it may be. I myself, hopefully, have calmed my jets on TSL, ranting and raving that “IT SHOULD TOTALLY BE CANON BECAUSE IT’S THAT GOOD GUYS!!!!” from a few years ago, and just accept that it’s a very good game for the most part. I still will step up to defend it as not being as bad as people think it is, but acknowledge that even I see flaws. The wait is gonna be worth it, because Phoenix tells good stories.
Unless you’re speaking literally, as in, you tried booting it up and it wouldn’t play on your system, in which case, I can’t help you.