Re: change sims 4 to 64 bit pc
@Panda4Pres The way to change to 64-bit is to open your Origin game library, right-click on the Sims 4 icon, select Game Properties > Advanced Launch Options, and choose 64-bit from the dropdown menu. If you don't see that option, right-click on the Sims 4 icon and select Repair, then look again. If that doesn't help either, clear Origin's cache, restart your computer, and repair again.
https://help.ea.com/en-us/help/faq/clear-cache-to-fix-problems-with-your-games/