TeamViewer data shows over 40% of global endpoints still run Windows 10 ahead of support deadline

*Sample size 250 million TeamViewer connections; July – September 2025; supportee view (endpoint receiving the support)

(IN BRIEF) TeamViewer’s latest data shows that more than 40% of global endpoints still run Windows 10, just days before Microsoft’s support for the system ends. Based on 250 million anonymized sessions analyzed between July and September 2025, the findings highlight significant cybersecurity risks for unpatched systems. To support global migrations, TeamViewer’s Digital Employee Experience (DEX) solution provides a Windows 11 Readiness Pack that checks compatibility, ensures compliance after upgrades, and simplifies the transition process for IT teams. The initiative reflects TeamViewer’s focus on helping businesses strengthen resilience and maintain secure digital operations.

(PRESS RELEASE) GÕPPINGEN, 8-Oct-2025 — /EuropaWire/ — As Microsoft’s support for Windows 10 nears its end this month, TeamViewer, a global leader in digital workplace solutions, has released data highlighting the scale of the challenge companies face. Analysis from a sample of 250 million anonymized TeamViewer sessions between July and September 2025 found that more than 40% of global endpoints receiving support through the platform are still running Windows 10.

This widespread reliance on the soon-to-be-unsupported operating system underscores growing cybersecurity risks and operational hurdles for both businesses and individual users. Jan Bee, Chief Information Security Officer at TeamViewer, warned:

“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 systems up to date remains one of the most effective ways to protect against cybersecurity threats.”

To help organizations navigate this large-scale transition, TeamViewer’s Digital Employee Experience (DEX) solution has introduced a Windows 11 Readiness Pack that allows IT departments to assess and manage upgrade preparedness across thousands of devices. The DEX platform automatically analyzes critical compatibility factors — including processor generation, Trusted Platform Module (TPM) configuration, and Secure Boot — to determine which systems meet Windows 11 requirements, which need adjustments, and which must be replaced.

Beyond readiness assessments, TeamViewer DEX also verifies post-upgrade configurations to ensure compliance and performance stability, giving IT teams full visibility and control throughout the migration process. Adrian Todd, Vice President of Product Management at TeamViewer, explained:

“Our solution gives IT teams the clarity they need on which devices are ready to upgrade, where issues exist, and confidence that everything is compliant once the upgrade is complete.”

By integrating automated checks and validations, TeamViewer DEX helps organizations minimize downtime, improve efficiency, and streamline the migration to a secure and supported operating system. As businesses brace for the Windows 10 cutoff, the data emphasizes the urgency of proactive upgrades and the critical role of digital management tools in maintaining operational security.

About TeamViewer

TeamViewer provides a Digital Workplace platform that connects people with technology—enabling, improving and automating digital processes to make work work better.

In 2005, TeamViewer started with software to connect to computers from anywhere to eliminate travel and enhance productivity. It rapidly became the de facto standard for remote access and support and the preferred solution for hundreds of millions of users across the world to help others with IT issues. Today, around 660,000 customers across industries rely on TeamViewer to optimize their digital workplaces—from small to medium sized businesses to the world’s largest enterprises—empowering both desk-based employees and frontline workers.

Organizations use TeamViewer’s solutions to prevent and resolve disruptions with digital endpoints of any kind, securely manage complex IT and industrial device landscapes, and enhance processes with augmented reality powered workflows and assistance—leveraging AI and integrating seamlessly with leading tech partners. Against the backdrop of global digital transformation and challenges like shortage of skilled labor, hybrid working, accelerated data analysis, and the rise of new technologies, TeamViewer’s solutions offer a clear value add by increasing productivity, reducing machine downtime, speeding up talent onboarding, and improving customer and employee satisfaction.

The company is headquartered in Göppingen, Germany, and employs around 1,900 people globally. In 2024, TeamViewer achieved a revenue of around EUR 671 million. TeamViewer SE (TMV) is listed at Frankfurt Stock Exchange and belongs to the MDAX. Further information can be found at www.teamviewer.com.

Media Contact:
press@teamviewer.com

SOURCE: TeamViewer