My mother is 75 years old. She has a PC, it is connected to the Internet, but she knows nothing about how to use the machine other than to play games, read email, and shop on-line. She will also watch the occassional you tube video. I have tahught her to click "yes" when windows update and other software wish to update. I fear thaty possibly she clicks yes to the online stuff too. Additionally, all her grandkids use her PC when they spend the night and so do my siblings. There is always an extra toolbar or some software installed that I have never heard of when I go visit. There are also often viruses or spyware. I usually spend 30 minutes to an hour getting her PC back to normal once a month. I was thinking that it would be nice to simply boot back to a predetermined good state. For this, I thought RollbackRX or Comodo Time Machine might be a nice option. I have a few questions before trying either. 1. For those that have tried both, which do you like better? 2. If you rollback to a previous state, do you lose all youer windows security updates? If so, how can you fix this? 3. Any other suggestions for this PC? I also would like to create a datapoint or rollback point for each user. So that the grandkids can just rollback to the way they like the PC configured then put it back to my moms rollback point when done. Same for my siblings. Thoughts?