The fastest way to turn Bluetooth on

On Windows, open the Settings app by pressing Windows key + I, then go to Bluetooth & devices in the left menu. Toggle the Bluetooth switch to On. On a Mac, click the Apple menu in the top-left corner, select System Settings, then click Bluetooth in the sidebar and make sure it shows as On.

If you see a Bluetooth icon in your taskbar (Windows) or menu bar (Mac), you can also click it directly and toggle Bluetooth without opening Settings. The icon looks like a stylized "B" made of dots.

Once Bluetooth is on, your computer will start searching for nearby devices. You should see a list of available devices to connect to within a few seconds.

Key Takeaways

  • Windows users open Settings, go to Bluetooth & devices, and toggle the switch to On.
  • Mac users open System Settings, click Bluetooth, and confirm it shows as On.
  • You can also click the Bluetooth icon in your taskbar or menu bar for a faster toggle.
  • After turning Bluetooth on, your computer will search for nearby devices within seconds.
  • If Bluetooth is missing from Settings, your computer may not have a Bluetooth chip or the driver needs updating.

Windows: Using the Settings app

Press the Windows key and the letter I at the same time to open Settings. On the left side, you will see a menu with several options. Click on Bluetooth & devices. The Bluetooth toggle should be near the top of the page on the right side.

Click the toggle switch so it turns blue and shows On. Your computer will now search for Bluetooth devices in range. If the toggle is already blue, Bluetooth is already on.

If you do not see a Bluetooth option in Settings at all, your computer may not have Bluetooth hardware built in. Older desktop computers often lack it, though laptops almost always have it. You can add Bluetooth to a desktop using a USB adapter.

Mac: Using System Settings

Click the Apple menu in the very top-left corner of your screen, then select System Settings from the dropdown. In the sidebar on the left, scroll down and click Bluetooth. You will see the current status displayed prominently.

If Bluetooth shows as Off, click the toggle or button to turn it on. The status will change to On, and your Mac will begin searching for nearby devices. The process takes just a few seconds.

On some older Macs, Bluetooth settings are in System Preferences instead of System Settings. The location changed with newer versions of macOS, but the process is the same.

Using the quick-access menu

Both Windows and Mac let you toggle Bluetooth without opening the full Settings app. On Windows, look for the Bluetooth icon in your taskbar at the bottom-right of the screen. It looks like a small "B" made of connected dots. Right-click it and select Show Bluetooth devices, or click it once to see a quick toggle.

On Mac, click the Bluetooth icon in the menu bar at the top-right of your screen. A dropdown menu will appear showing nearby devices and an option to turn Bluetooth on or off. If you do not see the icon, you can add it by going to System Settings > Bluetooth and looking for a menu bar option.

This method is faster if you turn Bluetooth on and off often, since you do not have to navigate through Settings each time.

What to do if Bluetooth does not appear in Settings

If you cannot find Bluetooth in your Settings menu, your computer may not have Bluetooth hardware. Desktop computers built before 2015 often lack it, and some newer desktops still do not include it as standard. Laptops almost always have Bluetooth built in.

You can add Bluetooth to any computer using a USB Bluetooth adapter. These are inexpensive (usually under $20) and plug into any available USB port. Once plugged in, Windows or Mac will recognize it automatically, and you can turn it on through Settings as normal.

If your computer should have Bluetooth but it is not showing up, the driver may need updating. On Windows, open Device Manager by right-clicking the Start button, then look for Bluetooth in the list. If you see a yellow warning icon next to it, right-click and select Update driver. On Mac, restart your computer — this often fixes driver issues.

Pairing a device after turning Bluetooth on

Once Bluetooth is on, your computer will show a list of available devices. Find the device you want to connect (a wireless mouse, headphones, speaker, or phone) and click or tap its name. Your computer and the device will pair, which means they will recognize each other and connect automatically in the future.

Some devices require you to enter a PIN or confirm the pairing on both the computer and the device. Follow the prompts on your screen. Pairing usually takes less than a minute.

After pairing, the device should connect automatically whenever both are turned on and in range. If it does not, you can manually reconnect by opening Bluetooth settings and clicking the device name again.

Troubleshooting Bluetooth that will not turn on

If the Bluetooth toggle is grayed out or will not respond, restart your computer. This fixes most Bluetooth problems. After restarting, open Settings again and try toggling Bluetooth on.

On Windows, you can also try restarting the Bluetooth service. Press Windows key + R, type services.msc, and press Enter. Find Bluetooth Support Service in the list, right-click it, and select Restart. Then try turning Bluetooth on again in Settings.

If Bluetooth still will not turn on after a restart, your Bluetooth hardware may be faulty or the driver may be corrupted. On Windows, uninstall the Bluetooth driver from Device Manager, restart your computer, and Windows will reinstall it automatically. On Mac, restart in Safe Mode by holding Shift while the computer starts up, then restart normally.

Frequently Asked Questions

Does turning Bluetooth on drain my battery?

Bluetooth uses very little power when no devices are connected. Once a device is paired and actively transferring data, the drain is noticeable but small — most laptops and desktops are plugged in anyway. On a laptop running on battery, turning off Bluetooth when you are not using wireless devices will extend battery life slightly.

Can I turn Bluetooth on and off from the keyboard?

Some laptops have a dedicated Bluetooth key or a key combination that toggles it. Check your keyboard for a key with a Bluetooth symbol. On Windows, you can also use the quick-access menu in the taskbar. On Mac, the menu bar icon is the fastest keyboard-free method.

Why does my computer not find my Bluetooth device?

Make sure the device is turned on and in pairing mode. Most devices enter pairing mode when you hold down a button for a few seconds — check the device manual. Also make sure the device is within 30 feet of your computer. If it still does not appear, restart both the computer and the device, then try again.

Will Bluetooth interfere with my Wi-Fi?

Bluetooth and Wi-Fi both use the 2.4 GHz frequency, so they can interfere with each other if many devices are active at once. In practice, this is rare and usually causes only minor slowdowns. If you notice Wi-Fi dropping when Bluetooth is on, move your router and Bluetooth devices farther apart or switch your router to the 5 GHz band if available.

Can I use Bluetooth on a desktop computer?

Most desktop computers do not have Bluetooth built in, but you can add it with a USB adapter for under $20. Plug the adapter into any USB port, and your computer will recognize it automatically. After that, you turn Bluetooth on the same way as on a laptop.