Contacted Turbotax support. Simple answer - faulty 2018 CD. Support person immediately sent me an online link for a download version of 2018. Installed no problem. However, you will need the installation key code from your CD to complete the installation at the end.
I use a iMac running Parallels so that I can run Windows 10. Here is the solution to the memory problem:
Kindly follow the steps as below:
1. Shut down your Windows virtual machine by clicking on the Windows LOGO to the bottom left within the Windows virtual machine > Shut Down or from the top left side in the Mac Menu Bar, click on the Actions > Shut Down.
2. Follow the steps in the article to get to your virtual machine's configuration - https://kb.parallels.com/117287
3. Now follow the steps in the article to change the Windows virtual machine's memory (RAM) - https://kb.parallels.com/113649 and change it to 8GB of virtual RAM to the Windows virtual machine.
