How to take screenshot on HTC One M10
1. Press and hold the POWER button, and then press the VOLUME DOWN button and hold it for one or two seconds.
2. In principle, all the same - you'll see a message in the notification bar and find the resulting album screenshot gallery.
NOTE: To share screenshots, just go to the Gallery and click the Send button to transfer screenshots to whomever you want!
Now you can try out for yourself and start capturing some cool images from the display of your Android smartphone!