I’ve been using the Microsoft Comfort Curve Keyboard 3000 for a number of years, and it’s mostly served me very well. However, since upgrading to Windows 10, the keyboard has shown an annoying bug. If I leave it for a few seconds without pressing anything then the keyboard seems to shut down. If any keys are held down at that point then the OS doesn’t notice when they get released. The result is it thinks the keys are still held until I pressed and release them again. Sami Korhonen has made a YouTube video demonstrating the same problem.