Unity deleting components from gameobjects

It’s the third time that my unity deletes all the components of my gameobjects, even in the code editor the “Using UnityEngine.UI” for example is sublined showing that is wrong. To fix that i have to create a new project and import the assets folder, but eventualy this happens again.

Someone knows why?

So… It happened again, someone please??? I’m about to explode this computer.