Windows 10 will reach the end of support on October 14, 2025. It once had over a billion users and still holds over half of the market share. Users face vulnerabilities without security updates post-deadline, and about one in five laptops may not be compatible with Windows 11. Alternatives to Windows 11 include open-source operating systems like Linux and Google's OS Flex. Remanufacturing as a Service (RaaS) offers a sustainable option for extending IT infrastructure lifespan, with remanufactured laptops being up to 70% less expensive and reducing carbon emissions by approximately 316 kg per laptop. Microsoft has announced a one-year security update extension for Windows 10 users at a cost of £23. The end of Windows 10 coincides with International E-waste Day, presenting an opportunity for businesses to adopt more sustainable practices.