Error when updating to El Capitan from Yosemite

[James1980]

Looking for some help with this error please.

I get the appleusbuhcipci error when trying to boot into update from yosemite to el capital using clover guide
https://www.tonymacx86.com/threads/direct-update-to-os-x-el-capitan-using-clover.172107/

I get the message after step 6. "When Clover boot screen appears, choose Boot OS X Install option (Example: Boot OS X Install from Macintosh HD). Choosing your system drive will go back to your previous installation without updating".

System info:
Asus P5KC
Geforce 8600 GTS

Thanks
James

 

[James1980]

I see that AppleUSBUHCIPCI is missing from my extensions folder... Do i need to add this?