Windows Update often automatically fetches the generic CSR Bluetooth driver. If not, visit the Microsoft Update Catalog and search for "CSR Bluetooth." Look for drivers dated after 2020.
Although many 75270-based dongles claim to be plug-and-play on Windows 10 and 11, users frequently report that Windows fails to recognize the device or lists it as an "Unknown Device" . 75270 bluetooth driver
The installation process was straightforward and hassle-free, and the driver has been stable and reliable ever since. I've been able to connect my Bluetooth headphones, speakers, and other devices without any issues, and the connection is strong and consistent. Windows Update often automatically fetches the generic CSR
In Device Manager, right-click the unknown device and select . and other devices without any issues