Common causes are:
- Bluetooth is turned off in Windows.
- Airplane mode is on.
- The desktop may not have Bluetooth hardware.
- The Bluetooth device is out of range, low on battery, or too close to a USB 3.0 device.
- The Bluetooth driver is outdated or incompatible.
Try this in order on Windows 11:
- Check that the PC actually supports Bluetooth. If Bluetooth is missing, verify the desktop’s product specifications.
- Turn Bluetooth on:
- Select the Network, Sound, or Battery icons on the right side of the taskbar.
- Turn on Bluetooth.
- Or go to Start > Settings > Bluetooth & devices and make sure Bluetooth is on.
- Make sure Airplane mode is off from the taskbar quick settings.
- Check the Bluetooth device:
- Make sure it is powered on.
- Charge it or replace batteries.
- Turn it off, wait a few seconds, then turn it back on.
- Keep it in range.
- Move it away from USB 3.0 devices if it is slow or not responding.
- Change discovery to show more devices:
- Go to Start > Settings > Bluetooth & devices > Devices.
- Under Device settings > Bluetooth devices discovery, choose Advanced.
- Remove and pair the device again:
- Go to Start > Settings > Bluetooth & devices > Devices.
- Select More options for the problem device.
- Select Remove device > Yes.
- Then pair it again.
- Run the Bluetooth troubleshooter:
- Go to Start > Settings > System > Troubleshoot > Other troubleshooters.
- Next to Bluetooth, select Run.
- Update the Bluetooth driver:
- Open Device Manager.
- Expand Bluetooth.
- Right-click the Bluetooth adapter and select Update driver > Search automatically for updated driver software.
- Restart the PC if prompted.
- If Windows does not find a newer driver, install the latest Bluetooth driver from the desktop manufacturer’s support site and restart.
If Bluetooth does not appear anywhere in Settings or Device Manager, the desktop may not have Bluetooth hardware or the adapter/driver is missing.
References:
- Fix Bluetooth problems in Windows
- Use a screen reader to fix Bluetooth problems in Windows
- Bluetooth not working properly on Windows 11 - Microsoft Q&A I have a PC with Windows 11 and I'm having trouble with my bluetooth devices. All of them fail and keep connecting and disconnecting randomly. They used to work for a while, then randomly disconnect for a few seconds (sometimes even a minute or two) and then work again.