[SOLVED] How to choose OS during boot time when the keyboard is a wireless one?

[modeonoff]

Hi, I have Windows 10 and Linux installed on two separate drives. I can choose between the OS during boot time by accessing the boot menu during boot. To do that, I need to connect the keyboard to the PC. If my keyboard is a wireless BT keyboard, what else can I do to be able to choose the OS?

 

[Barty1884]

Is your keyboard BT only? A lot of BT keyboards have a wireless 2.4GHz dongle too, and if BT isn't working in a pre-boot scenario, the 2.4GHz option certainly should....

 

[modeonoff]

Thanks. It has only BT and USB. I don't like to connect the keyboard to the pc via a cable. Is there a good 3rd party device to allow me to add 2.4GHz capacity to the keyboard and perhaps also other usb devices like a joystick?