Bluetooth Missing in Windows 11: How to Get It Back and Connect Again

1Rule out Airplane mode and a hidden quick toggle

Before suspecting the driver, clear the obvious. Airplane mode takes Bluetooth down along with Wi-Fi, and the Bluetooth quick toggle may have been removed from the quick settings panel, which makes it look like it vanished from the system. On laptops, a function key may have switched the radio off without warning.

1. Click the network, sound and battery area next to the clock to open quick settings.
2. Confirm Airplane mode is off.
3. Click the pencil or edit icon on the panel and see whether the Bluetooth toggle is available to add back.
4. Check whether any F key on the laptop carries the Bluetooth or antenna symbol and try the shortcut with the function key.
5. Open Settings > Bluetooth and devices and see whether the switch is back.

2Re-enable the adapter in Device Manager

A disabled adapter disappears from Settings entirely, which is rather misleading. In Device Manager it is still listed, with a small downward arrow on the icon. Re-enabling takes seconds and brings the Bluetooth switch straight back.

1. Right-click the Start button and choose Device Manager.
2. Find the Bluetooth category and expand it.
3. If an item has a downward arrow on its icon, right-click it and choose Enable device.
4. If an item has a yellow warning triangle, the driver is faulty: move on to Solution 6.
5. Close and reopen Settings > Bluetooth and devices to check.

devmgmt.msc

3Force a fresh scan and show hidden devices

When the Bluetooth category does not even exist in the list, Windows has lost track of the adapter. Scanning for hardware changes makes the system sweep the ports again, and showing hidden devices reveals old entries that need removing before the adapter comes back properly.

1. In Device Manager, open the Action menu and choose Scan for hardware changes.
2. In the View menu, tick the option to show hidden devices.
3. Look for greyed-out Bluetooth entries, and also under unknown devices or other devices.
4. Remove the duplicate greyed-out entries by right-clicking and choosing uninstall, leaving only the current one.
5. Restart the computer and check whether the Bluetooth category is back.

4Restart the Bluetooth support service

Bluetooth depends on a Windows service that has to be running. If it stopped or was set to disabled, the switch disappears even with a perfect driver. Setting the service to manual and starting it fixes this scenario without touching anything else.

1. Press the Windows key together with R, type the command below and confirm.
2. In the list, find the Bluetooth support service.
3. Double-click it and check the startup type: the expected value is Manual.
4. If it is set to Disabled, change it to Manual and apply.
5. Click Start and close the window. Restart the computer if the switch does not come back straight away.

services.msc

5Run the Windows troubleshooter

The troubleshooter does not fix everything, but it repairs the most common cases on its own: a stopped service, a disabled adapter, an inconsistent radio setting. Since it takes little time and carries no risk, it is worth running before moving on to reinstalling the driver.

1. Open Settings > System > Troubleshoot > Other troubleshooters.
2. Find the Bluetooth entry and click Run.
3. Accept the fixes it proposes and wait for it to finish.
4. If the Bluetooth troubleshooter is not in the list, that usually means Windows recognises no adapter at all: go to Solution 6.
5. Restart and test pairing with a device you know works.

6Reinstall the Bluetooth adapter driver

This is the decisive fix in most cases, especially when the problem showed up right after a Windows update. Uninstalling the device and restarting makes the system install the driver from scratch. If Windows installs a generic version on its own and it does not work, the computer maker's driver is the right route.

1. In Device Manager, expand Bluetooth, right-click the main adapter and choose Uninstall device.
2. If a box appears offering to delete the driver software, leave it unticked on this first attempt.
3. Restart the computer: Windows reinstalls the adapter by itself at startup.
4. If it does not come back, repeat the uninstall with the delete driver software box ticked and restart again.
5. Download the Bluetooth driver from your computer maker's support page, using the exact model, and install it manually.

7Turn off power saving for the adapter

If Bluetooth works and then vanishes after the laptop sleeps, power saving is the explanation. Windows switches the adapter off to preserve battery and does not always bring it back on wake. Unticking that option costs a little runtime and removes the symptom.

1. In Device Manager, right-click the Bluetooth adapter and open Properties.
2. Go to the power management tab.
3. Untick the option that lets the computer turn the device off to save power.
4. Confirm, and do the same on the USB hubs if your adapter is an external dongle.
5. Restart and test by letting the computer sleep once on purpose.

8Undo the recent update or use an external adapter

If Bluetooth stopped existing right after an update and nothing above brought it back, it is worth rolling the driver back or uninstalling the update. As a last resort, a USB Bluetooth adapter is a definitive fix on computers whose internal adapter has failed, which is common on older machines.

1. In Device Manager, open the adapter properties and, on the driver tab, use the option to roll back to the previous version if it is available.
2. If that button is unavailable, open Settings > Windows Update > Update history > Uninstall updates and remove the update installed on the date the problem started.
3. Consider a restore point from before the problem as well, bearing in mind it undoes programs installed after it.
4. On desktops, with the computer unplugged, open the case and confirm the antenna cable and the card are seated. If you are not comfortable doing that, take it to a repair shop.
5. If nothing works, a USB Bluetooth adapter installs in seconds and avoids any internal repair.