Unfortunately for Windows 10 PC users there is no version of the GarageBand DAW that works for Windows computers. It is, after all, made by Apple for macOS and iOS devices.
However, as with most software options, there is a workaround that may or may not work for you. It includes downloading an iOS emulator and installing it on your computer. If it works, it should allow you to install and run all iOS apps, incuding GarageBand.
We, however, don’t recommend this since there are other DAWs that are just as effective in Windows 10 computers as they are on macOS devices. Some even come free with the purchase of your MIDI keyboard, as is evidenced above.