Cybersecurity firm ESET is warning Windows 10 users to upgrade to Windows 11 or switch to Linux ahead of the operating system’s end of support in October 2025. Without action, users risk exposing their devices to significant vulnerabilities and cyberattacks.
“It’s five minutes to midnight to avoid a security fiasco for 2025,” said ESET security expert Thorsten Urbanski. He advised users not to wait until the last minute, encouraging them to upgrade immediately or consider alternative operating systems if their hardware cannot support Windows 11.
After October 14, 2025, Windows 10 will no longer receive free security updates unless users purchase extended security updates (ESUs). This leaves systems vulnerable to new exploits, potentially leading to data breaches, malware attacks, and other cybersecurity threats.
Despite these risks, adoption of Windows 11 remains slow. Globally, 63% of Windows users still rely on Windows 10, while only 34% have transitioned to Windows 11, according to December 2024 data from StatCounter. In Germany, approximately 65% of computers continue to run Windows 10. Gamers, however, are ahead of the curve, with over 54% using Windows 11 according to Steam’s survey.
The transition to Windows 11 has faced challenges, including missing features, performance concerns, and the Trusted Platform Module (TPM) 2.0 hardware requirement, which has blocked many older devices from upgrading. Microsoft has stated the TPM requirement is essential for modern security features like cryptography key protection and Secure Boot.
For users unable to upgrade, Microsoft offers costly extended security updates: $30 per device for consumers or $427 per device for businesses over three years. ESET strongly recommends upgrading to avoid these fees and potential security issues.
By acting now, users can avoid the risks associated with running outdated systems. Switching to Windows 11 or exploring alternative operating systems like Linux can ensure continued security and functionality in the years ahead.
