@dricks @Fernando , re post no7 - i havnt tried the certificate dricks uploaded but i have tried installing Riolin signed drivers that were harvested from an install and exporting the certificate, then add the certificate using certmgr.msc and installing the drivers but i get that untrusted driver warning. I have read elsewhere on the interwebs that im not the only one where certmgr doesnt work :(. What i did find and what works 100% is harvesting the certificate from the registry and using NTLite add the certificate reg file to Registry page and the (Riolin signed)driver/later on drivers to the Drivers page, Apply then install the image. The drivers install perfectly :). So far i have only tried this on H310C(R2.0) and B365 motherboards but it works everytime, 11 installs and counting so hopefully the cert reg file can be used by anyone wanting to slipstream a Riolin signed driver. Happy to share 