- Locate the New Frontier folder (Default is C:\Program Files\Steam\steamapps\common\New Frontier) and delete the whole folder. Then locate the folder in drive C:\ with the name "vssroot" (use the search bar on the top right). This folder is hidden, so you will need to enable Show Hidden Files via folder option it will become visible. Delete the folder as well
- Also, repair the packages called Microsoft visual c++ 2017 redistributable x86
Follow these steps and it should start normally again.