I got this more as an experiment, you know, tech fun. I have an old Dell with a PATA drive. I installed it. Restarted Windows 8.1. Exactly, no errors but OMG slow. So slow that after waiting 12 hours for a normal 174 file update to load I went back to the old PATA drive which felt like greased lightning. I plan further experiments with other machines. thanks for the fun