The newly installed computer cannot use Bluetooth.

I assembled the machine myself, and the installation went smoothly. I installed Windows 10 first, but found that the wireless and Bluetooth were not working. After searching online, I found out that the Windows 10 system does not support Wi-Fi 7. So I upgraded to the Windows 11 Professional edition, and after the upgrade, the Wi-Fi worked normally, and the Bluetooth icon also appeared. I used it for two days, but today when I tried to connect my Bluetooth headphones, the Bluetooth couldn't find any devices. I tried using a wireless keyboard, but it still couldn't find any devices, so I confirmed it was a Bluetooth issue. I followed online guides to restart Bluetooth via the WIN+R key and reinstall the driver, but neither worked. I’m really at a loss—can you provide a solution?