SGX has been discussed quite a bit with respect to PowerDVD, UHD playback, etc. I have previously posted about how I was able to download and install SGX on my Z170-based system and after doing so my system passed the SGX tests. I recently became aware that my system no longer had SGX installed and would not pass the SGX test. I noticed when for some reason I saw that CyberLink had released an updated UHD/Blu-ray advisor version. The previous version I had installed was quite literally a year old. Why would my system now fail? A number of things have occurred recently: I installed a newer BIOS for my Z170-based motherboard to mitigate as much of the recent Spectre vulnerabilities as possible. This also resolved some other issues like updating Intel ME to deal with a previously discovered vulnerability. I updated from Windows 10 1709 to Windows 10 1803. Somewhere in that time frame SGX went up in smoke. The new CyberLink advisor told me that my system failed SGX and had a little note and I believe a link to more info and that was that. I decided to roll back to the previous version. I ran the test, my system failed, but as I commented in prior discussions the advisor asked me if I wanted to install SGX, I said yes, it downloaded SGX for me, and ran the installer. Unfortunately, I was informed that my system didn't meet the requirements. This did not happen previously. So, it would seem that Intel & others realized that people were doing this and decided to make things more strict. Now, did I really gain anything out of having SGX installed? Not that I am aware. But, I'm still a bit annoyed.