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Here are some troubleshooting steps you can try to fix your Bluetooth issue on Windows 10:
Run the Bluetooth troubleshooter: Windows 10 has a built-in troubleshooter that can help you diagnose and fix common Bluetooth problems. Go to Settings > Update & Security > Troubleshoot > Additional troubleshooters > Bluetoothand run the troubleshooter.
Update Bluetooth drivers: Go to Device Managerexpand the Bluetooth categoryright-click on your Bluetooth deviceand select Update driver. You can also try downloading the latest drivers from your computer or motherboard manufacturer's website.
Disable power-saving mode: SometimesWindows 10's power-saving settings can interfere with Bluetooth connectivity. Go to Device Managerexpand the Bluetooth categoryright-click on your Bluetooth deviceand select Properties. In the Power Management tabuncheck "Allow the computer to turn off this device to save power."
Reset Bluetooth: Go to Settings > Devices > Bluetooth & other devicesand click on the "Remove device" button next to your Bluetooth device. Thenturn off your Bluetooth devicerestart your computerand turn your Bluetooth device back on. Finallygo back to the Bluetooth settings and try pairing your device again.
Check for interference: Make sure there are no other devices around that could be causing interference with your Bluetooth signalsuch as microwaves or wireless phones.
If none of these steps workit's possible that there is an issue with your physical Bluetooth hardware. You may need to contact your computer or motherboard manufacturer for further assistance or consider purchasing an external USB Bluetooth adapter.