1 Billion Windows PCs at Risk as Upgrade Resistance Grows
A shocking new report reveals that over 1 billion Windows PCs worldwide could face serious security threats in the coming years. According to Dell’s latest earnings, 500 million of these PCs are too old to upgrade to Windows 11, while another 500 million machines could upgrade but haven’t. This leaves half of the global Windows user base in a potentially vulnerable position.
The Importance of this Issue
The security implications are massive. Microsoft recently announced that Windows 10 extended security updates (ESU) will remain free for home users until October 2026, a move intended to ease the transition. However, experts argue that this could backfire. While home users may be relatively safe, large businesses with outdated Windows 10 systems could face significant cybersecurity risks, including malware attacks and data breaches.
Read More: Windows 11 Update Causes Major Problems After Windows 10 Support Ends
Users Avoiding Upgrades
Industry analysts are surprised by the sheer scale of users refusing to upgrade. Simon Batt from XDA-Developers highlights that many users “don’t see upgrading as worth the hassle”, even when their devices support it. This reluctance leaves millions of PCs running older software without full security protections.
The Business Impact
For companies with thousands of PCs, the cost of running outdated systems could be huge. Without proper tracking of updates and system health, businesses may be sitting on a cybersecurity time bomb. IT departments may now face pressure to enforce upgrades or consider alternative operating systems like Linux or ChromeOS for older machines.
See More: Transforming Every Windows 11 PC into an AI-Powered PC
A Looming PC Crisis
Beyond security, there is also a potential PC replacement crisis. With hundreds of millions of old PCs nearing the end of their lifecycle, 2026 could see a surge in e-waste if businesses and consumers don’t plan ahead.
Conclusion
As we move toward 2026, the combination of delayed upgrades, aging hardware, and extended security updates has created a precarious situation for Windows users. Both individuals and businesses must take immediate action to ensure their devices are secure, or risk being caught in a widespread cybersecurity incident.
Stats to Note:
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1 billion Windows PCs still running Windows 10
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500 million PCs too old for upgrade
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500 million PCs eligible but not upgraded
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Windows 10 ESU free until October 2026



