I went to look at some files I downloaded a few days ago and they are missing. Checked Time Machine and everything is gone. I have no records at all in Time Machine. It has lost all data and shows no restore history (only NOW) despite having a file size of 1.3TB and showing Oldest Backup May 30 (when I installed it). I know that earlier today TM had the full accessible history but where is it now? What is going on? Do I have a virus? I'm also having a problem with Safari here. As I was about to post TM stared and it is just showing Preparing in the System menu and the data had dropped to 650GB which is less than my data. It took 12 minutes to start and it seems to be starting all over.