Since I cannot locate my original post on this forum I will quickly state my issue. My issue is I cannot install Crimson 16.1. I have done AMd clean unistall. Shut off my Firewall and protection. Still no success. I just reinstalled Catalyst 7.1. I want to thank all who responded to my original post and offered assistance. I am not as tech savvy as most on here so I need things explained in simple straightforward way. I am clueless on how to turn off NIC? any further assistance is greatly appreciated.