Thank you for your recent post. I moved it from Mesh Help here to the Product Support Community as this would be a better place for you to receive an answer on the Mesh. However, the best place for you to ask this question would be in the Pega Academy Forums on the PDN.
If you decide to post there and receive a reply, please don't hesitate to update your post here with the answer.
Although I do not know the answer of your question (up to Pega Academy team to answer), I wonder if you have tried those VMs on windows 10. It should probably work given windows 8 and windows 10 are not much different, at least from user's perspective.