My BT drops and reconnects several times a day, at random moments. The BT is connected to my BT mouse and headset. I tried these devices on ohter PC's/laptops without problems. All possible updates have been done: W10, BIOS, HP support assistant. Also a few fresh installs of the laptop from scratch were done.
The installed driver for Realtek Bluetooth 4.2 Adapter: 1.7.1021.3000
I tested with the drivers that you proposed but there is no difference. I think the problem is the network card RTL2288BE but it has already been replaced. I'll send it back to HP again for the third time, while I still have warranty.
Be alert for scammers posting fake support phone numbers and/or email addresses on the community. If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".