Missing exe files on cd

I can not see setup.exe files on any software cd with explorer. They are there on other computers but not on mine. Suspect virus but all virus scans come up with nothing.

 

thanks for the reply. I have checked allow showing hidden files. The setup.exe file does not show up when I use windows explorer in windows and I get an error when I try start/run Application not found. The setup.exe file is on the disk. I see it in safemode on my computer and on all other computers. I see all other .exe files that are on my hard drive. This only happens on software CDs. I have checked other software CDs and the same thing. No setup files.