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- HP Community
- Notebooks
- Notebook Wireless and Networking
- Re: Bluetooth driver issues

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11-10-2026 11:57 AM
11-10-2026 04:24 PM
Hi @Vickrant, welcome to the HP Support Community.
Bluetooth disappearing with Code 45, and an Unknown USB Device with Code 43, usually means Windows is losing the Wi-Fi and Bluetooth module itself, rather than only the driver.
Please try these steps:
1. Open Device Manager, click View, then select Show hidden devices, and look for the Bluetooth adapter and for the Unknown USB Device.
2. Install the latest Bluetooth and Wi-Fi drivers and the latest BIOS from here: https://support.hp.com/us-en/drivers
3. Run the HP PC Hardware Diagnostics by pressing F2 at start-up, and test the wireless module.
4. Check whether your Wi-Fi also drops at the same time as Bluetooth, as that would confirm the module is the common cause.
Could you tell me the exact HP laptop model, and whether Bluetooth still disappears when you use an external USB Bluetooth adapter?
I am proudly Mexican, a Computer Systems Engineer and an HP Community volunteer (not an HP employee).
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