This always happens to be when I do a fresh install of Windows on a Dell notebook…
Dell’s got a page now with drivers for most of their recent computers:
Download here: https://www.dell.com/support/article/us/en/19/sln129590/download-the-broadcom-ush-drivers-and-resolve-unknown-device-issues?lang=en
These are the ones I use the most. Windows 10 x64 drivers for the Latitude e6540, e7240, e7440, and Precision M4800, Latitude e7270