First download and install bluestacks. It should be possible yes. But I have not downloaded garageband so I cant tell you for sure.
Can I get GarageBand on my Windows PC?
It's only available for Apple devices i.e. Mac, but luckily with the help of the software named as Bluestacks; it is possible for the Windows users to download GarageBandfor their laptops or PCs. By using Bluestacks (Android emulator) you can easily get GarageBand for PC in just few minutes.
GarageBand for PC - Download for Windows (7,8.1,10) - Apps for PC
I recommend to install wise care 365 which can make your PC run stable and fast.
