Hello, 1. Start Parallels Desktop for Mac, load the Guest OS , proceed to the "Actions" menu on the Mac menubar and choose "Install Parallels Tools " in order to connect the CD image with Parallels Tools to the Virtual Machine. 2. In Guest OS mount the Parallels Tools disk, for example: execute mount /dev/cdrom /mnt/cdrom command in the console. Then run the installation script from the mounted drive, for example: execute sh /mnt/cdrom/parallels-tools-install.run command in the console. NOTE: these commands require root privileges. And keep in mind that commands above may vary with different systems. 3. Reboot the Virtual Machine. Best regards, Stacey