Locate the device with a yellow exclamation mark (usually under Other devices Right-click it and select Update driver Browse my computer for drivers

Often seen with generic "Mini USB Bluetooth Adapter" products or on older motherboards like the MSI H81M-E33.

Your Bluetooth adapter might be physically failing or disabled in BIOS/UEFI. Reboot → press F2/Del → navigate to or Bluetooth → ensure it is Enabled . If still failing, consider a USB Bluetooth dongle (e.g., TP-Link UB500) – it will bypass the internal driver entirely.

: Generally supported through compatibility mode or via hardware-specific IDs. Legacy Systems