I had a problem with my ReadyCache SSD software so I tried to uninstall it and comes up with errors. Can't install new version because of it so I used Windows Disk Management to create a drive and installed ReadyBoost on it.
Now it's back to being a cache drive. It's a Sandisk 32g SSD. No problem.
Things are getting worked out little by little, so far so good.
By the way Gary, Speccy showed my Win 7 key and the W10 installation didn't ask for the key.