HP reported that 30% of its installed user base is still using Windows 10, which will lose support on October 14, 2025, leaving around 400 million PCs vulnerable. Many of these PCs do not meet the hardware requirements for upgrading to Windows 11. The percentage of Windows 10 users has declined slightly since September 2025, when nearly half of HP and Dell's PCs were still running the older system. Microsoft introduced an Extended Security Updates (ESU) program, allowing users to enroll for free or through a payment option, but later made access free for users in the European Economic Area who do not meet the cloud backup requirement. Critics argue that the end of support for Windows 10 exemplifies programmed obsolescence, potentially forcing many functioning PCs into retirement. Initiatives like End of 10 are encouraging users to consider transitioning to Linux, highlighting its lack of advertisements and telemetry tracking. Microsoft has attempted to persuade users to upgrade to Windows 11 through ads and claims of improved performance. It is unclear if Windows 10 users have enrolled in the ESU program or are operating without security updates.