Microsoft will cease support for Windows 10 on October 14, 2025, meaning it will no longer receive security updates or bug fixes. Users are encouraged to upgrade to Windows 11 to avoid vulnerabilities. The Extended Security Updates (ESU) program is available but comes at a cost. Upgrading to Windows 11 is free for most users, but it requires specific hardware, including the TPM 2.0 module. Installing Windows 11 on unsupported machines may not receive updates or support, potentially necessitating the purchase of a new PC.