: Intel provides a specific verified installer for Windows 7. Direct Link : Intel® Wireless Bluetooth® for Windows 7 .
: If your dongle uses Intel hardware, the final supported driver for Windows 7 is version 21.40.5 : For specific hardware like the Plugable USB-BT5 bluetooth usb dongle 50 driver windows 7 32bit verified
A: Yes, backward compatible with CSR 4.0 (partial feature support). : Intel provides a specific verified installer for Windows 7
: Common for budget 5.0 dongles. Verified Source : CSR Bluetooth Driver via Lenovo . bluetooth usb dongle 50 driver windows 7 32bit verified