Do not just double-click the setup file. Follow these steps exactly:
Windows 10 "Fast Startup" may cause the card to disappear after a reboot. Disabling Fast Startup in Power Options often resolves this. hp un2420 mobile broadband module driver windows 10 repack
Finding a working driver for the HP UN2420 Mobile Broadband Module on Windows 10 can be a major headache. Because this hardware is older, official support from HP often stops at Windows 7 or 8. However, with a proper repack or the right compatibility settings, you can get your mobile data back up and running. Do not just double-click the setup file