A: Yes, if the driver is installed via Method 1 or 3. Some units labeled “E-UB5” on Amazon/AliExpress are now sold with driverless support for Windows 11.
Maybe. Microsoft added native CSR Bluetooth drivers to Windows 10 (version 1709 and later). However, many users report that the generic Microsoft driver disables advanced features (like Low Energy audio or mouse reporting). For the best performance, you still want the official driver. e-ub5 bluetooth usb dongle driver