What happens to Win7 VM with "clean" install of Yosemite?

I'm planning a clean install of Yosemite.
On previous Mac's I had used Bootcamp with Parallels to run Windows so the partition was unaffected.
What will happen now that Win7 was installed without Bootcamp?
If I do a clean install, and it erases the Win7 VM (as I suspect) is there a method of restoring it once Yosemite is up an running?
Thanks!

 

Backup/copy the .pvm to an external drive, put it back in after installing.

 

Thanks for the response. Could you be more specific? Where is it?

 

http://kb.parallels.com/en/114118

(The KB applies in the same way to your situation, a new install is like a new mac)

 

Great! Thanks!