Press Windows Logo + R and then type “services.msc” in there and click on Ok. 2. Find "Bluetooth support service" on the list and double-click on it. 3. Find the General Tab and from there, change the startup type to Automatic. (If it's not) 4. Then click on Log On Tab and choose “This Account”. Not every computer has a built-in microphone. While it’s true that most laptops nowadays have one, many older ones do not. Many desktops also don’t come with built-in mics. To check if your computer has a microphone, follow the below steps for Windows (Vista, 7, 8, 10, and 11) Press your Windows key, type Control Panel in the search box and Click the Run button next to the Bluetooth, and follow the instructions. Here’s how to do it on Windows 10: Press the Windows logo key + I keys to open Settings. Click on Update & Security. On the left pane, click Troubleshoot. Under Find and Fix other problems, click on Bluetooth. Click on Run the troubleshooter. Model of your computer - For example: "HP Spectre X360 14-EA0023DX". Your Windows and device specifications - You can find them by going to go to Settings > "System" > "About". What troubleshooting steps you have performed - Even sharing little things you tried (like rebooting) can help us find a better solution! To reinstall your Bluetooth drivers: Right-click the Start button (Windows icon), select Device Manager, then select > next to Bluetooth. Right-click your Bluetooth headphones and select Uninstall device . Next, restart your computer, and wait for it to rediscover your headphones. Alternatively, go to Action > Scan for hardware changes in Roll back driver. Open the Device Manager and look for the Bluetooth group of devices. Expand it and select your Bluetooth chip. Right-click it and select Properties from the context menu. On the Properties window, go to the Driver tab. Click the Roll back driver button and return to the older driver for your device. While some desktop computers have an internal Blutooth adapter, most require an external Bluetooth dongle. Most recent laptops come with a built-in Bluetooth adapter. To check if you have a built-in adapter, look at your PC specifications. Note, if you need a Bluetooth adapter, I recommend buying one here. That's the exact same one that I use Randomly, bluetooth will stop working and disappear from device manager after I've shut my Dell XPS laptop running Windows 10. There's no way to "turn it on" and it doesn't show up anywhere in settings -- until I restart my computer. This ends up meaning that I have to restart my computer every few days just to get bluetooth back. zyS3.