Windows 10 support ends tomorrow: Here’s how to upgrade to Windows 11 for free

Windows 10 reaches end-of-life on October 14, 2025, meaning your PC will stop receiving critical security updates. Upgrading to Windows 11 is completely free for compatible computers. This comprehensive guide covers three official Microsoft upgrade methods, compatibility checking with the PC Health Check app, step-by-step installation instructions, and alternative options like Extended Security Updates for older PCs. Learn how to protect your data, verify system requirements, and complete the transition before the deadline to keep your computer secure.