Answer. This is Wil, one of the independent advisor, an expert with Windows 10 and a fellow Windows 10 user like you. Upon checking the specification, the HP Envy M4 Notebook doesn't have built-in Bluetooth. You would need to purchase and use a Bluetooth Dongle on your laptop so you can connect your Bluetooth devices to it. 8 GB DDR4-2666 SDRAM (2 x 4 GB) 4 GB DDR4-2666 SDRAM (1 x 4 GB) Maximum. 64 GB. note: Due to the non-industry standard nature of some third-party memory modules, we recommend HP branded memory to ensure compatibility. If memory speeds are mixed, the system performs at the lower memory speed. Hi, recently i have updated my laptop's (hp elite book : Folio 9470m) operating system to windows 10 (64 bit). But i could not find any Bluetooth in my OS. I went to hp official site to download my blutooth driver but could not find any. There is bluetooth driver for windows 8.1/8 but not for windows 10. Click Add device to start searching for the device. Click Bluetooth as the kind of device you want to add. Select the Bluetooth device you want to add from the list. If prompted, enter the PIN, and then click Connect. If a PIN does not display, enter 0000, a commonly used default PIN for many Bluetooth devices. I reinstalled Windows 10, and now the Wi-Fi is working , but the Bluetooth does not. I checked the Bluetooth with the old OS and it was working fine when the Wi-fi wasn't. I installed both Broadcom & Realtek drivers from the HP website, but nothing.is working . Troubleshooting says that "Bluetooth is not available on this device". 1. Use Device Manager. In the Search bar type Device Manager and select it from the list. Next, locate Bluetooth and expand the list. Right-click on the audio device listed and select Update driver. Click on Search automatically for updated driver software. Follow the on-screen instructions and restart your device at the end. Settings: Go to Start > Settings > Devices > Bluetooth & other devices and toggle on Bluetooth. Action Center: Click the Action Center icon and click the Bluetooth card, which will turn from gray to dark blue. Once Bluetooth is enabled, you can connect headphones and other devices or send and receive files via Bluetooth. Here is what you have to do: Click the Start button and type Control Panel in the search bar. Open the Hardware and Sound section. Select Windows Mobility Center, and you will see a few options. Move the slider under the Keyboard backlight tab to the right to enable the backlight. Click on the tab to access additional options. I have always been a fan of HP but this by far is dissapointing. When I contacted HP support they makde it seem as if I merely needd to plug in a bluetooth speaker through the USB and it would work however it has not worked. So now that I have 2 of these expenisve computers and neither one have BLUETOOTH - I guess I know better next time to 1- troubleshoot with windows. 2- unistall and install again the device from device manager. 3- turn on bluetooth services from registery. 4- Download and install the latest driver from hp support page that is compatible with windows 7 64 bit. 5- Download latest driver from intel website that is compatible with windows 8.1 64 bit. pK6vCKk.