Microsoft has issued a final warning to hundreds of millions of Windows 10 users, urging them to upgrade or face increased cyber security risks. Support for the operating system ends on 14 October, a decade after its release, meaning it will no longer receive security updates or technical support.
According to Microsoft executive Yusuf Mehdi, devices running Windows 10 will continue to function but will become more vulnerable to malware and viruses. StatCounter data shows just over 40% of Windows users still run the old system, with consumer group Which? estimating that five million UK users are affected.
A Which? survey found that a quarter of those still using Windows 10 intend to keep it after the deadline. Editor Lisa Barber warned that millions may be unprepared, increasing their risk of hacking and scams. Additionally, some applications may stop working properly as they lose support.
Users can upgrade to Windows 11 for free if their device meets hardware requirements. For those unable to upgrade, Microsoft offers the Extended Security Updates (ESU) program, which provides critical security patches until 13 October 2025, but no other fixes or support. The upgrade option can be accessed via Windows Update in settings.
