The ASUS USB-BT500 is a Bluetooth 5.0 adapter that adds wireless connectivity to Windows PCs. It is commonly used with headphones, keyboards, mice, speakers, and game controllers. When the adapter shows a Driver Error, a Code 10 message, or fails to detect nearby devices, Bluetooth becomes completely unusable. Most ASUS USB-BT500 problems are caused by software conflicts rather than hardware failure. The issue is usually linked to a damaged driver, USB instability, power-saving settings, or conflicts with built-in Bluetooth hardware. Troubleshooting step by step can usually restore normal function without replacing the adapter.
Common Symptoms
Users may see a Driver Error in Bluetooth settings or a Code 10 error in Device Manager. The adapter may appear installed but fail to detect nearby devices
Some users report that devices pair once and then disconnect repeatedly. Audio devices may connect but produce unstable sound. These symptoms usually point to the same core areas: driver issues, USB instability, or Windows service
Fix 1: Update Bluetooth, USB, and Chipset Drivers
Outdated or damaged drivers are the most common cause. Update the Bluetooth driver, USB controller driver, and chipset driver through the ASUS support page or your PC manufacturer's website.
If you want a faster way to identify which drivers are causing the problem, Driver Talent X can scan the system automatically and flag outdated or damaged Bluetooth, USB controller, and chipset drivers. After updating, restart the computer and test the adapter again.
Fix 2: Reinstall the Adapter in Device Manager
If the error appeared after a Windows update or a failed installation, a clean reinstall often resolves it. Open Device Manager and expand the Bluetooth section. Find the ASUS USB-BT500 entry, right-click it, and choose Uninstall device. If Windows offers the option to remove the driver software, select it
Unplug the adapter, then go to Action and choose Scan for hardware changes. Plug the adapter back in and let Windows detect it fresh. This forces the system to rebuild the driver setup instead of continuing with a damaged configuration
Fix 3: Try a Different USB Port
A bad or low-power USB port can trigger Bluetooth errors. Move the adapter to a different port and test again. On desktops, rear USB ports connected directly to the motherboard offer more stable power. On laptops, try a port on the opposite side
If the adapter works on one port but fails on another, the issue is with the USB controller rather than the Bluetooth adapter itself
Fix 4: Disable USB Power Saving
Power-saving settings frequently interfere with the ASUS USB-BT500, especially after sleep or long idle periods. Open Device Manager and expand Universal Serial Bus controllers. Right-click each USB Root Hub, open Properties, and go to the Power Management tab. Uncheck the option that allows the computer to turn off the device to save power
If the Bluetooth adapter itself has a Power Management tab, disable the same option there. This prevents Windows from powering down the adapter and then failing to restore it correctly
Fix 5: Check Bluetooth Support Service
Even with the correct driver installed, Bluetooth may still fail if the Windows service is not running. Press Windows + R, type services.msc, and press Enter. Find Bluetooth Support Service, open it, and make sure the startup type is set to Automatic. If the service is stopped, start it manually
If it is already running, restart the service once and test the adapter again. This helps when the adapter appears installed but still cannot detect or pair with devices
Fix 6: Disable Built-In Bluetooth
If your laptop or motherboard includes built-in Bluetooth, it may conflict with the external adapter. Open Device Manager, expand the Bluetooth section, and find the internal device, typically labeled Intel Wireless Bluetooth or Qualcomm Bluetooth. Right-click it and choose Disable device
Leave the ASUS USB-BT500 connected and test again. If the driver error disappears, the conflict between the two Bluetooth devices was the cause
Fix 7: Re-Pair Devices and Run a Clean Test
If the adapter is recognized but still cannot connect, verify that the target device is actually in pairing mode. Remove any existing pairing record and pair from scratch
Test the adapter with another Bluetooth device as well. If the ASUS USB-BT500 cannot detect any device at all, the issue is with drivers or services. If it detects some devices but not others, the problem may be with the target hardware rather than the adapter
Conclusion
ASUS USB-BT500 Driver Error, Code 10, and Bluetooth detection issues almost always come from software conflicts. The most effective fixes are updating Bluetooth and USB drivers, reinstalling the adapter, changing the USB port, disabling power-saving settings, and turning off internal Bluetooth if a conflict exists.
