I also had 100,s of files deleted, computer no longer boots up.
yes i know back up.
but computer was soon to be replaced, will be replacing with a refurnished computer in about 2 weeks.
Still if I did not have a subscription for 3 computers which expires April 2019, I would be changing to another antivirus.
I am using the wifes computer.
New what was happening, before she put on her computer.