Equal sign key on the Apple keyboard's number pad doesn't work in Windows 8

Question

I have an Apple, USB keyboard with the integrated number pad on the right. I have it connected to a HP laptop running Windows 8.

When I use the number pad, I've noticed that the equal sign = isn't captured. The other number pad keys [0-9.+-*/] work as expected.

Is there a way to get it to function without having to use AutoHotKey?

** edit **

Keyboard and number pad work correctly with a Mac.

Answer 1

Windows keyboards don't have an equals = on the NumPad [10-key].
The top row is NumLock, divide / , multiply * , minus -

You might need AutoHotKey or similar to persuade it to work in Windows [not something I'm particularly experienced with].

Answer 2

You can spend hours trying to jimmy-rig it with "AutoHotKey" or you could just spend $10 and get a windows keyboard. Your choice.