At the Windows Update screen at the second half of the screen there is an icon of two gears and reads "Advanced options". Click on it. Look again at the second half of the screen and click on "Optional Updates" to see if there is any driver update. However, your screenshot of Device Manager shows that there is no Bluetooth device detected from Windows. If it was there without drivers, it would have a yellow ! on it. This means that either your model doesn't have a Bluetooth device (could be optional, my Acer laptop has a Bluetooth on/off switch but no device), or it is switched off. If it has a Bluetooth device look at all the sides of the laptop for any on/off switch. Some models have a switch that enables/disables both the Wi-Fi and the Bluetooth, others have separate. If there is no physical switch on the laptop, have a look at the function keys (F1, F2 etc) one of them when pressed alone or together with the FN key might enable/disable Bluetooth or the Wi-Fi. Press it several times, it might cycle through Wi-Fi only, Bluetooth only, both enabled, both disabled. Usually there is a visual indication on screen, if the respective software is installed of course. In case that didn't work, last resort is to restart and press F2 BEFORE loading Windows to enter UEFI firmware (aka BIOS). Look carefully all the settings, to see if the Bluetooth is disabled and enable it. If you cannot find a relevant setting and all the above didn't help, then it is very likely your model doesn't have a Bluetooth device. If it has, you must first enable it and then install any drivers. Usually Windows will detect it and install drivers automatically, but you can download them from Dell, just in case.
