Win 8.1 wont pair with Bluetooth Device

Row

Hi all,
Not sure if i have posted this it the correct section so if the mods want to move it then thats fine..:)

I have a win 8 machine here where i have tried to pair a bluetooth device which needs a 4 digit code to pair which was never a problem on win xp & 7 but for some reason there is no option to input this code when its trying to pair on win 8..

I have paired other devices to this machine that dont need a code witout any problems.

I have since updated to win 8.1 and have all the latest updates onboard but its still the same.

The laptop is a Hp Pavilion and the bluetooth dongle is a Asus Bt400

All suggestions welcome..?
Thanks.

Row

Found this but still cannot fine a solution...
http://windows.microsoft.com/en-ie/windows7/add-a-bluetooth-or-other-wireless-or-network-device-frequently-asked-questions

CatInABox

Go to the HP support website, and download the latest version of the bluetooth driver. Windows update doesn't always provide the latest driver.

It's anecdotal, but I've had problems with windows 8.1 and bluetooth drivers before. Updating to the latest for that bluetooth chipset helped a fair bit, but it seems like a lot of manufactorers don't provide drivers for 8.1. Had to get the latest driver off a weird website, looked like a geocities era website!