Analysis Shows Significant Need for Updates as Windows 10 Nears End-of-Life; TeamViewer DEX Enables Structured Migration

• Sample of 250 million anonymized TeamViewer sessions shows that over 40% of connection endpoints run Windows 10
• TeamViewer’s Digital Employee Experience (DEX) solution mitigates IT teams’ workload thanks to Windows 11 readiness checks
• TeamViewer CISO: “Upgrading to a supported OS is an important step in safeguarding your company’s IT landscape.”

GOPPINGEN / GERMANY, 8 October 2025 - With support for Windows 10 set to end middle of October, concerns have been raised about the continued use of this operating system on a global scale. Data from TeamViewer, a global leader in digital workplace solutions, now underscores these challenges, revealing that over 40% of global endpoints that recently received support via a TeamViewer session still run Windows 10.

The results are based on an analysis of an anonymized sample of 250 million TeamViewer connections initiated between July and September 2025. The sample includes connections from users with both paid and free licenses.

_{*Sample size 250 million TeamViewer connections; July - September 2025; supportee view (endpoint receiving the support)}

Jan Bee, Chief Information Security Officer at TeamViewer, says: “In a few days, two in five endpoints will no longer receive patches and updates, leaving them exposed to vulnerabilities. Companies and individuals need to upgrade to a newer, supported operating system as soon as possible. Keeping your systems up to date is one of the most effective ways to protect individuals and businesses against cybersecurity threats.”

Mitigating upgrade challenges with TeamViewer DEX 
TeamViewer DEX supports the upcoming migration by mitigating the challenges and friction that companies worldwide face when upgrading thousands of devices to a new operating system. Through a Windows 11 Readiness Pack, TeamViewer DEX gives IT teams a clear, real-time view of their entire device landscape, automatically checking compatibility requirements such as processor generation, Trusted Platform Module (TPM) configuration, and Secure Boot. This visibility helps organizations identify and prioritize which devices are ready for upgrade, which require remediation, and which may need replacement.

In addition, TeamViewer DEX validates devices after the upgrade to confirm configuration and compliance, helping IT teams ensure migrations are successful. By combining readiness checks with post-upgrade validation, the solution enables companies to manage the transition to a supported operating system in a structured, scalable, and resource-efficient way. Adrian Todd, Vice President Product Management at TeamViewer says: “Our solution gives IT teams the clarity they need on which devices are ready to upgrade, where issues are, and confidence that everything is compliant once the upgrade is complete.”.