I tried doing the steps again. See if the attachment is complete now. So that you’ll know, I have a Dell Inspiron 3671 desktop computer with Windows 10. My graphics card is MSI NVIDEA 710. I have a Dell wireless 1707 card (802.11BGN+Bluetooth 4.0, 2.4 GHz). The tablet that I’m using as my other monitor is Samsung Galaxy Tab E 9.6 (modal number SM-T560NU) and Android version 7.1.1.