Translate examen de seguridad from Spanish to English

– The free online on-demand tool that conducts three types of scans: the protection scan checks for and removes things like viruses and malware; the clean-up scan checks the hard disk for unnecessary files and helps users decide which ones they can safely remove, and also clears the computer's registry of orphaned data; the tune-up scan helps improve the computer's performance by defragmenting the hard disk. ¹