Sorry if this is the wrong forum, but I use Windows 7. I am a reasonably experienced user and can wipe disks and reinstall Windows without any problem. I do back up my important data on DVDs as well as external hard drives. What I would like to know is there any way of stopping files being encrypted by these viruses? I have not been affected, but if there was a way to protect all my files I would like to know. I do not want to use any form of encryption. Ideally just making files read only would suit me, but does this really work? If it was of value is there any way to protect all the files on a drive with one command? Ideally it would to make all JPEGS, FLAC, APE,DOC files read only in all folders and sub folders. Would be very grateful to hear the opinions of some of the experts on this forum.