To ensure the security of your dual-booted or virtualized systems, best practices such as keeping the operating systems and software up to date with the latest security patches, using reliable antivirus and anti-malware software, and exercising caution when downloading and installing applications from untrusted sources must be followed. To improve the overall security of your systems, it is also advised that you use strong passwords, activate firewalls, routinely backup your data, and consider encrypting important information.