Microsoft will cease support for Windows 10 in October 2025, ending free security updates and fixes. Users continuing to use Windows 10 after this date will face increased risks of malware and viruses due to the lack of security updates. While third-party antivirus applications can provide some protection, they cannot replace the operating system patches that will no longer be available. Business users can purchase extended security updates for Windows 10 for up to three years, starting at a cost of for the first year per machine, which doubles in subsequent years. Individual consumers can extend protection for Windows 10 Home systems for an additional year through the Extended Security Update (ESU) program, lasting until October 2026, but further availability of ESU for home users beyond this initial year has not been clarified by Microsoft.