The whole "product placement/product cleared for use" thing is very messy, in my opinion. Possibly badly executed too. Although Windows-powered devices' brands are almost always clearly visible (see Microsoft, Acer and Lenovo) GUIs are a real mess. // 1. Here's a Windows laptop with a Windows 10 taskbar and then some opened windows which UI seems to come from Linux: Screenshot. // 2. Here's a Surface Pro 4 with Surface Pro 3 Type Cover that's displaying a Windows 10 taskbar and a Windows 8 taskbar at the same time, but it's running Internet Explorer from Windows 7 or Vista: Screenshot. // 3. Here's the same Surface Pro 4 with the same taskbar configuration running a browser that seems to be borrowing its UI from Safari, but has a Windows-like title bar: Screenshot. // 4. Here's what seems to be a Lenovo All-in-One computer with a macOS-like Dock but a Microsoft Edge-like UI when it come to the web browser: Screenshot. // 5. Here's another look at the Surface Pro 4: Screenshot. // 6. Here's a Surface Book with a Windows 10 taskbar but displayin windows with a macOS-like UI: Screenshot. // 7. Here's what it seems to be a Nokia Lumia 930 running Windows 10 that's using a screenshot of the Phone app's UI opened on the Photos app without hiding the app bar: Screenshot. // 8. Here's what I think is an Acer laptop running a live video feed from Windows 10's Films