Microsoft may soon mandate upgrades from Windows 10, potentially ending the current free upgrade offer. Recent updates to Windows 10 include warnings about automatic feature updates for devices nearing the end of support. Microsoft auto-installed the KB5001716 patch last year, affecting around 400 million Windows 10 users. Support for Windows 10 will end on October 14, with an option to extend it for a fee. Analysts estimate at least 240 million PCs are ineligible for the free upgrade and will need to pay for security updates or risk vulnerabilities. Microsoft and PC manufacturers are encouraging users to invest in new PCs as the deadline approaches.