I'm running Parallels 10.1.4 (28883) on a new iMac running Yosemite. My OS is Windows 7, freshly installed. I'd like to install a Windows-based 3D modeling program I own that comes only on DVD. I have Apple's external USB SuperDrive, which I've plugged directly into the back of my iMac. When I put my installation DVD into the drive, it shows up properly in Windows. When I open the drive, I get an Explorer window with all the usual top-level files, including Setup.exe. When I double-click Setup.exe (or right-click and choose open, or run it manually from a command window) I get a prompt that asks me if I want to give the program permission to run. I'm logged in with an adminstrator account, by the way. When I choose "Yes," the disk whirs for a second or two, and that's the end of it. No installation happens. Nothing happens. I've checked with the Task Manager, and nothing seems to be running. I've looked in the Error Log, but there's a lot there - just browsing around, I couldn't find anything. I've tried unplugging and re-plugging the drive, and telling it to connect to the Mac and to Windows, and of course I've rebooted Windows a few times and even quit/restarted Parallels.It's always the same: it asks if I want to proceed, I say yes, the dialog goes away, and that's the end of it. One thing I noticed is that the pop-up window I mentioned above identifed the DVD drive as "networked" (though it's plugged right into the machine). I don't know if that has anything to do with this problem or not. I know the installer and the disk are good, because I installed the program on an older computer a while ago (into Windows, under Parallels, on a Mac! That Mac's gone, now). The DVD is stuffed full, so there's way too much to drag it all onto my hard drive and try the installation from there. Can anyone help me diagnose and solve this problem?
Update: Right-clicking on Setup.exe and choosing "Run as administrator" did the trick. Strangely, I was using an account that was registered as an administrator. But that wasn't quite enough, apparently.