I've glanced around the threads and don't see a situation specific to this. I've been running bios mod since the system was built, always activated no problem using opatool 0.7, using ASUS cert and ultimate key. I changed nothing and today its showing not genuine and I have to activate in 3 days. I reran the tool and put the cert and the key back in and rebooted, but same issue. Any ideas on what changed? I looked at my Updates and don't see anything patched in the past few days.