So basically ...I ran windows performance tool because of slow boot issues, since I ran this tool there has been no repopulation in the readyboot folder. Ive checked to make sure the trace is enabled in performance monitor ...all is fine. I noticed that there isn't no ecache.sys driver on my system but not sure if its because of running windows 10. Does anyone know how to set it back to default or fix it? If no one knows whats happening then could someone just verify if windows 10 has a driver called ecache.sys please, I know it was there in win8.