I just installed Parallels for Mac with Windows 10 and ca't figure out how to mount USB devices. For example, I have a USB card reader for photo cards that need to be read by a PC program, but I can't get that card mounted while in Parallels/Windows 10. Similarly, I got a DVD with a PC program to view some X-rays, but can't get the drive to appear and mount with Windows. How do I get USB devices to mount?