High Sierra installed, but few issues.

OS: High Sierra w/ APFS
MOBO: Gigabyte GA-Z97X-Gaming 7
CPU: i7 4790k
GPU: MSI R9 390x gaming 8gb

Issues:

Audio not working have AppleACL.kext installed.
Restart with clover bootloader usb shows the usb installer, filevault prebooter, macos install prebooter, macOS, and boot recovery. It does not show my Windows 10 installation on my other SSD.
Restart without usb plugged in doesn't have a bootload menu at all. How do I get a clover menu to show me the option of booting from macOS or Windows (seperate sdd's)?
iMessage doesn't work

Any other common issues I should look for?

iATKOS | United Kingdom