I can't turn Bluetooth on or off
I had same issue and was searching online for help but had no luck with any. But I managed to resolve by going to Computer Management >> Device Manager, then noticed yellow exclamation mark on Bluetooth sign and after right clicking on it and disabled it once and then enabled after it recognised automatically! I have Windows 8.1 with Sony Vaio Tap 11.
Go to Start Screen > Swipe Up > All Apps > Dell Support Center, then click Detailed System Information. If it says that your computer isn't bluetooth compatible, then you will probably need to buy a bluetooth adaptor. Did it work before?
If it did work before, press windows key, type 'troubleshooting,' open it, go to 'hardware and sound' > 'hardware and devices' > follow instructions or... search for an up to date bluetooth driver online for your computer
This worked for me(Intel Wireless Card with Bluetooth):
Go to device manager.
- If Bluetooth is not listed, go to View-> Show Hidden Devices.
- Then under Bluetooth, uninstall all drivers(including any named Generic Bluetooth ...)
- Get the latest Bluetooth drivers from Intel here.
- Install.
I tried other methods without success. I finally updated chipset drivers and BIOS firmware. After that enabling the button was not greyed out anymore.
I have Windows 8.
Power options may have something to do with the problem otherwise.
Here is a very good troubleshooting around that https://forums.lenovo.com/t5/Lenovo-U-and-S-Series-Notebooks/WiFi-and-Bluetooth-greyed-out-in-Windows-8/td-p/1011971
I had a similar problem on my S206 - WiFi was on but Bluetooth was off when I upgraded Windows, and when upgraded I couldn't install the driver for bluetooth as the install wizard insisted I didn't have the hardware connected. The Windows 8 energy management drivers only activated flight mode when the wireless button was pressed. I uninstalled the Windows 8 energy management drivers, and installed the Windows 7 energy management drivers. These let you enable and disable Wifi and Bluetooth individually. Unfortunately the buttons for WiFi and camera don't work in Windows 8 properly, unless you hibernate the PC and resume. I changed the power settings of the active profile temporarily so pressing the power button put the PC into hibernate mode, and on resuming the WiFi button worked as expected. I didn't need to use the Fn button as it wasn't enabled in BIOS. Once Bluetooth was activated I was able to install the Bluetooth drivers, and then I reinstalled the Windows 8 energy management drivers over the top to do an in-place upgrade. Now I have both WiFi and Bluetooth selectable in the Windows 8 settings panel.