To recap the safest and most reliable approach:
The safest way to acquire this driver is through the official HP FTP servers. HP SoftPaq sp78044.exe File Size: ~45.19 MB Version: 7.35.351.0 (Released Oct 2016) sp78044exe download for windows 10 repack
This driver package was released by HP to address stability problems with Broadcom 802.11n network adapters after upgrading to Windows 10. Many users reported that older versions of the Broadcom driver caused system crashes when connecting to specific wireless access points. To recap the safest and most reliable approach:
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However, because this is an older driver (originally designed for Windows 8 or 8.1), finding a reliable, "repacked," or modified version for Windows 10 is necessary for a smooth installation.
Only as a last resort – and even then, only after exhausting all official and safe alternatives.