Try these steps in order on Windows 11:
- Check whether Bluetooth is just turned off.
- Select the Network, Sound, or Battery icons on the right side of the taskbar.
- Look for the Bluetooth quick setting and turn it on if it appears.
- If Bluetooth is on but not connected, Windows can show Not connected.
- Check in Settings.
- Go to Start > Settings > Bluetooth & devices.
- Make sure Bluetooth is turned on.
- Run the Bluetooth troubleshooter.
- Open Settings.
- Go to System > Troubleshoot > Other troubleshooters.
- Find Bluetooth and select Run.
- Let the troubleshooter finish and apply any fixes it offers.
- Make sure airplane mode is off.
- Select the Network, Sound, or Battery icons on the taskbar.
- Confirm that Airplane mode is turned off.
- Turn Bluetooth off and back on in Settings.
- Go to Start > Settings > Bluetooth & devices.
- Turn Bluetooth off, wait a few seconds, then turn it back on.
- If the Bluetooth button is still missing, check Device Manager and reinstall the adapter.
- Select Search on the taskbar, type device manager, and open Device Manager.
- Expand Bluetooth.
- Right-click the Bluetooth adapter name and select Uninstall device > Uninstall.
- Select Start > Power > Shut down.
- After the PC is off, wait a few seconds and turn it back on.
- Windows will try to reinstall the driver automatically.
- If it does not, open Device Manager and select Action > Scan for hardware changes.
- If Bluetooth still does not appear, install the latest Bluetooth driver from the PC manufacturer.
Note: uninstalling the Bluetooth adapter removes the current driver until Windows reinstalls it. Use that step only if the earlier checks do not restore the Bluetooth toggle.
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