Hey Paul, system all screwed up, ended reloading win10 all over. Finally back to normal, tried to read that software dvd again, as I really need it, but same error from uac, so started following your last instructions, (win 10 fresh with new files, right?)...wrong!...the first two didn't work, but on #3, finally read the dvd, only to give me another surprise, this time, got new error saying "This Driver can't release to failure !!...but when I clicked OK, dvd kept reading the files, so I kept hitting ok every time the error popped up, and dvd kept going!...finally it began loading all motherboard drivers, tools, BIOS, etc, and the error kept popping up, and I kept hitting ok, until all was done, so I rebooted and try executing some of the tools, only to get the original red error back on each one of them !, nothing could really be executed!, so I'm back to the beginning. By then it was too late, so I went to bed. it's beyond me what's going on with this, so if you're out of ideas, thanks very much, really appreciate the effort and willingness to help!
Jess