Inspiron 3668, no bluetooth

See this and if it helps

https://support.microsoft.com/en-us/help/15290/windows-connect-bluetooth-device

Well, it really doesn't matter what I am trying to pair because when I click "Add a Bluetooth or other device", then select "Bluetooth", it says "Can't Connect" and to "turn on bluetooth". Also, as stated either it will not allow me to remove the previously paired mouse. (unpairing should be allowed by the PC, not the mouse)

Let me ask this: should there be a Bluetooth on/off switch option under Device>Bluetooth and other devices? I do not have any such switch.

Mice (all that I've seen) come with their own Bluetooth transceiver and do not use the PC's Bluetooth transceiver.

What else are you trying to pair?  There are different levels of Bluetooth and some devices are only compatible with certain Bluetooth levels.

The Dell downloads has the correct Bluetooth driver, best to use the Dell downloads for most devices.

http://www.dell.com/support/home/us/en/19/product-support/product/inspiron-3668-desktop/drivers

Yeah tried that already. There are never any Bluetooth devices listed because for some reason Bluetooth is turned off on the PC. The computer cannot scan for Bluetooth devices because Bluetooth is turned off

Does anybody know if there is supposed to be a Bluetooth on/off switch under Setting>Devices>Bluetooth?

Here is more from the tenforums.com

https://www.tenforums.com/tutorials/33807-turn-off-bluetooth-windows-10-a.html

If that still does not work and since its a new PC, best to call Dell support.  If there is some issue only Dell support can get it corrected under warranty.

 Has anyone figured this one out yet? I have the same problem and don't feel like blowing the rest of my day with Dellindia Support.

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@CaptainDrew wrote:

 Has anyone figured this one out yet? I have the same problem and don't feel like blowing the rest of my day with Dellindia Support.

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If you want free support and parts, that is what is required.

If you want to do it yourself, you can replace the mini-PCIe card or just get a Kinivo USB adapter.

So after a recent Dell update, my bluetooth went away yet again, and I could not get it back....then I got a Windows 10 update. After that I ran another Dell update and got excited when it said there was an "Intel 3165 and Bluetooth driver update". Ran that, rebooted twice, still no bluetooth. Troubleshooting in Windows says "this device doesnt have bluetooth" (which is why there is no on/off button, setting just says bluetooth is off....and the Action Center does NOT have a bluetooth box at all...)

So I decided to go back to what worked over a year ago....I unplugged it...while the computer was on. I left it unplugged, came back 45 minutes later and plugged it in....VIOALA! Bluetooth is back.

Don't ask me how or why, I just know that it's the only thing that works.

Microsoft disabled bluetooth stacks due to Key Negotiation of Bluetooth or KNOB attack. That requires removing and reinstalling bluetooth drivers then security updates.

You have to do this each time there is a Feature update aka going from 1803 to 1809 to 1903 to 1909 etc.

https://www.usenix.org/system/files/sec19-antonioli.pdf

. Sven was right. Did what he suggested. Bluetooth is back on. What a  joke.

Dude I love you! This worked for me. Spent 3 hours troubleshooting: restarting the computer, performing updates, uninstalling/reinstalling drivers from Dell, doing an sfc scan for corruption, etc. Turns out that a good 'ole powercycle fixes this issue.