Chosen Solution

Suddenly, out of nowhere, dozens of windows open on their own. I close these windows and they keep popping up. Sometimes when the computer restarts, at the home screen, before entering the password, the screen blinks and hears a noise as if someone was typing the enter key.

Please use this guide to eradicate viruses: How to remove malware from an infected windows PC

At first, I thought the problem could be virus or a malware. But the laptop was protected by a updated version o KIS. Nevertheless, I formated the laptop and installed a new OS and the same problem persists.