Microsoft is offering a free upgrade from Windows 10 to Windows 11 for eligible devices that meet the minimum system requirements and use the appropriate upgrade tools. Official support for Windows 10 will end on October 14, 2025, after which Microsoft will stop providing free security updates, technical support, and bug fixes. Users can obtain a paid Extended Security Updates (ESU) program for an additional year of critical security updates. Windows 11 requires specific hardware prerequisites, including TPM 2.0 and compatible processors. Users can check their PC's eligibility for the update using the free PC Integrity Checker app. To upgrade, users can download the Windows 11 Installation Wizard or use the Rufus tool to create a bootable USB stick for installation. Backing up data before upgrading is recommended.