Lets go, I have officially downloaded it. the latest alternate watch doesn't work no matter what you do, however the old one works completely fine. my guess is to why the newer one doesn't work is because my CPU cant run it. I hope this helps you.
So, the main problem is that your drivers might be outdated. Based on your graphics card, e.g. Intel, Nvidia, AMD, you should download the corresponding drivers update. If you do not know how, just look it up on YouTube, and again, specify your graphics brand. I hope this helps! :)