I received a email in my yahoo spamm folder with my username and one of my passwords.
I read that email and in that email it says that i entered a site and he installed a keylogger to access all my passwords, he take some screenshoots of my desktop.
I instaled a fresh windows 10 after that with nod 32 antivirus, and in every day at some point the programs that i'm using closes but they work in background (i watched that in task manager), my desktop icons dissapear, my taskbar dissapear and the desktop background turns black.
When my desktop background turns black all i see is the pointer of my mouse.
I dont know why this happens with a fresh windows 10 installed.