Unity bug makes nothing work

Unity 5.6 freezes completely, i cannot click anything, nothing works, if i close Unity starts recompiling everything again and takes a lot of time, then Unity starts again. Tried to open an empty scene and it works even though takes like two minutes to open an empty scene but when open the main scene freezes Unity completely. I see Unity is still using cpu though i dont listen the hard drive work

I deleted library and temp folder and restarted pc and reinstalled Unity again but nothing works.

How much RAM does your machine have?

Are you running out of disk space?

I have 16gb of ram and 57gb of free space

It happens when i open a particular scene which just worked fine until now, other similar scenes i could open them

Now when i close Unity i start hearing a music of birds, this is surrealist, my game doesnt even have any sound like that.

I got to make the problematic scene work adding it to another scene and the removing the older one, but then when Unity starts it freezes automatically as starts with the scene with problems. I tried to change something in scene and save it with a different name but it doesnt work, it freezes anyway