Bluetooth adapter disappeared following Win 10 upgrade

[SJ00884]

Upon updating to Win 10 Pro ver. 1809 today, everything works fine except the Bluetooth. The troubleshooter says "device not installed..." Funny, have been using is for years!

I've run all windows and HP diagnostics and nothing has changed. I have rolled back to ver 1803 and now all the previous drivers appear in device manager, all Bluetooth devices show up under settings/devices/Bluetooth&other devices but they all indicate "Bluetooth is turned off".  The Bluetooth icon is no where to be found.

Any help please?

Name: Bluetooth Network Connection
Description: Bluetooth Device (Personal Area Network)
Physical address (MAC): cc:3d:82:bc:76:ad
Status: Not Present
Maximum transmission unit: 0
Connectivity (IPv4/IPv6): Disconnected

HP EliteBook Folio 9480m, i5-4210 16Gb mem 250 GB SSD. All HP drivers and s/w up to date.

[banhien · Accepted solution]

@SJ00884

Please try to re-install the following BT driver

     https://ftp.hp.com/pub/softpaq/sp87501-88000/sp87911.exe

Regards.

[SJ00884]

Thank you for the rast response. I reinstalled the softpaq as suggested and nothing has changed. Everything is still the same. Other thoughts?

[SJ00884]

So I recalled a HP hard reset procedure where shutting down, removing the battery and holding down the power button for a bit would cure potential ailments. 

After performing this procedure, all BT anomalies have been resolved and in fact Win 10 ver 1809 is now installed and operating normally. 

The wonders of modern computing. Thanks again for all of your help.