<p><strong>The OS of any computer device is the base software where the resources within a system are managed, and it depends on its correct configuration and operation to provide security to the software itself. This paper describes some security tools for Windows and Ubuntu OS, in order to inform users about new possibilities to protect information from any threat, avoiding being exposed to vulnerabilities and security breaches, which can be prevented if the security mechanisms available to each of these operating systems are known and applied.</strong></p>