Re: why won't sims4 work with windows 10?
@kalebjoseph07 Sims 4 works fine in Windows 10, at least most of the time. Yours is a known issue:
https://sims4.crinrict.com/eng/2014/09/unable-to-start-initialization-error-at-startup/
Start by setting exceptions in Windows Defender's Controlled Folder Access, if you have it enabled, as well as any third-party antivirus/firewall software you have running. If that doesn't help, you can try the other steps described in the above link.