I asked almost the same thing here earlier in the week. and got 0 help 77 views and no response from anyone.
Anyway not sure where you are stuck at but you might need to press the Esc key to see the progress.
And then at some point it going to look like its frozen and not doing anything. I think it was expanding archive something ect...
anyway leave it running overnight. I left mine running for 3 hours didnt help not until I left it alone and checked the next day did I see if finally finish. I dont know what the issue is with HyperV and this product. But its really bad for the install. I almost think it would be faster to actually build this on a old computer and do a Physical to VM export. its just really long wait to install on a HyperV VM I might try installing something else on my desktop to see if its better. But They didnt make this easy to install on HyperV Guest.