note1: could break computer per other users response, for me disabling only EntryProtect Service by SentryBay allowed me to play.
note2: disabling all services may cause some other applications to not function properly so keep that in mind, you may have to slowly re-enable them to find which one is actually preventing new world from launching.
This fix is for if you are trying to launch New World and it says Play, you click Play, and then nothing happens after a few seconds.
I tried everything from uninstalling, reinstalling, verifying game integrity, etc etc.
Type msconfig into the windows search bar and press enter.
On the General Tab, de-select load startup items, then click apply.
Then click the Services tab and click Hide All Microsoft services at the bottom. This hides the essential services that microsoft/windows needs.
Then click disable all. This will disable all non essential windows services. We do need Easy Anti-Cheat though so click that one to re-enable it.
Click apply and then restart your computer.
After this, I was able to launch new world.