Microsoft's Secure Boot certificates, in use since 2011, will begin to expire in June, potentially leaving many Windows 10 users without essential updates. As Windows 10 approaches its end of support in October 2025, Microsoft is offering a complimentary year of extended support, which includes new Secure Boot certificates, but users must enroll to receive these updates. For those who do not enroll, Google offers a free upgrade option to ChromeOS Flex, which allows users to repurpose old laptops into efficient machines. ChromeOS Flex is lightweight, requires less hardware power, and provides regular security updates, making it a safer alternative to unsupported Windows systems. Google has made ChromeOS Flex available on a reusable USB stick, although it is often in short supply.