Right click on the device, go to Update Driver
Say you want to browse for driver software
Find the driver files you downloaded (if they were ZIP files when they were downloaded you need to extract them)
Click OK and then Next and it will install the software.
Repeat process for each missing driver.
Thanks for your help this is what I have been doing and successfully installed everything apart from the Ethernet controller, now it's installed something and it comes up under device manager as -
Network adapters
- Realtek PCIe GBE Family Controller with a yellow (!) sign? what shall I do? Also when trying to load the sample music it doesn't load up