Original Acer Windows rewritten over

Apologies for posting in English. I received my Acer Predator Triton 300 (PT315-52) yesterday, and tried changing language to English. All menus' text didn't change to English from deutsch, so I stupidly ran a command on command prompt (found somewhere on the web), and it took me after a restart to the same Set Up that I had seen when I first turned on the laptop. But the options were in English and slightly different. It worked, but Settings wouldn't open up in any way. I tried refreshing/resetting, then I tried making a Live Windows USB after noting down my Windows Key. Formatted over the existing windows install to fix it. Now everything is fine, but Acer Predator Sense (which allowed me to control fans, overclocking etc) is gone. The pc is really heating up, maybe because Acer Software is gone. I don't know how to reset to the factory setting Windows. I will live with Partial German Menus if I must. Any advice would be greatly appreciated.