Lenovo: An exclamation mark next to Software Guard Extensions Device after upgrading from Windows 10 (1607) to Windows 10 (1709) – ThinkPad

After upgrading the operating system from Windows 10 (1607) to Windows 10 (1709), an exclamation mark ! is displayed next to Software Guard Extensions Device in Device Manager.

https://support.lenovo.com/es/es/solutions/ht505938