Windows 10 does have a screen mirroring feature that allows you to share your screen with another device. To use this feature, you'll need to open the Settings app and go to the System section. Then, click on the Display tab and scroll down to the "Multiple displays" section. Here, you'll see an option to "Duplicate these displays" or "Extend these displays." Selecting the former will enable screen mirroring on your Windows 10 device.