Computer crash and burn

A few nights ago, our computer stopped working. Without going into a lot of detail, we found out we had a number of viruses and adware, despite having antivirus software (regularly updated) and firewall protection. We had to do a recovery, and when we recovered the computer and got rid of the viruses and adware, we had to reload programs. Problem: all of my adobe pictures are no longer there. The thumbnails show up, but the photos are missing. I had almost all of them backed up, but that is over 7000 photos that are now not connected to adobe and that just disappeared from the computer. It is so frustrating! Plus, I have no idea how we picked up all of these viruses when we supposedly had virus protection. We do not download lots of items or open email attachments.