If performing first time (out-of-the-box) setup, ensure the SIM card is inserted.
If powered off, press the Power button.
Select Express settings.
Utilize the touchscreen or mouse to select the on-screen options.
From the Create an account for this PC screen, enter the requested info (e.g., name, password, password hint) then select Next.
From the Let's get connected screen, select the preferred network (e.g., Mobile broadband, Wi-Fi).
If prompted, enter the network security key then select Next.
Allow several minutes for Windows 10 setup to complete.