install - trying to use .dmg file purchased for original install

OSX 10.7, Parallels 7.

When I originally purchased Parallels, I bought Win7 at the same time, and it just installed it.

Now I'm trying to re-install after replacing the HD. I have Parallels installed, and I burned the .dmg file I downloaded
(called Windows7HomePremium.dmg) to a DVD. When I start up Parallels and point it to the DVD, type in the Unlock Code, it errors out saying that there isn't a bootable OS. I've searched the net, but can't figure out what I'm doing wrong. It installed beautifully when I purchased Windows during the install...

thanks for any suggestions you have.

 

I guess when you say you burned the Windows7HomePremium.dmg file to a DVD you are pertaining to a image copy of the windows installer. If that is the case copy the "Windows7HomePremium.dmg" to your MAc desktop, right click it then click "get info" change the name to Windows7HomePremium.iso then click ok. Once prompted click on "Use ISO". Try to create a new Virtual machine and point to the "Windows7HomePremium.iso" file.