Depence what sound card it has. You van get work Trackpad, keyboard on Windows 10 64bit as well.
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What I done. Open CMD as Administrator. Than go to directory where you have saved bootcamp. In situation Bootcam is saved in Downloads directory. Write command cd /Users/YourUsername/Downloads/Bootcamp/WindowsSupport/Drivers/Apple hit enter. Than write new command: msiexec /i BootCamp64.msi it will let you install 64Bit drivers on unsupported Mac. Now Open Task Manager and leave it as it is Opened. So press on bootcamp installer next > next etc till starts installation. It has problem with Sigmatel and Realtek sound drivers. It stuck at those both. What you should do is switch back to Task Maneger and End Proccess. Bootcamp will continue installation to end including Apple Keyboard, etc. Than Bootcamp will ask you to restart computer. Let it to do. Now it will be little bit tricky, but works 100%. So Extract Sigmatel package. You will find in Bootcamp folder. Turn compatibility Mode Windows 7 or Previous Windows Versions. Run Setup.exe and follow instruction. As soon it starts you will get Error message. Close it, sure installation will close as well. So now right mouse click on This PC > Properties > Device Maneger. Well you get new windows with devices etc. So on sound card bottom of list select it and Update Drivers. Select Browse my Computer for driver software and than select Let me pick from a list of device drivers on my computer. On small window select Have disk... Than Browse and go to folder where is extracted Sigmatel and take from folder Vista and select what you have 32 bit or 64 bit. And than on windows press Next. It will install now. After all hold couple seconds than press on you keyboard volume keys and you will hear sound. Thats me sound card works. Thats it.