Do I have to Reinstall Windows?

[BrettU1]

I am currently upgrading my mac to Yosemite (late to the party, I know). I am currently running Parallels 9. I believe I should upgrade to Parallels 10 correct? My question is, will I have to reinstall windows? The reason I ask, is that I do not know where my windows 7 disk is?? I have misplaced it among moving.

 

[Dhruba@Parallels]

Hi Brett,
You do not have to re-install Windows after upgrading to Yosemite. However to be on a safer side, please take backup of the Windows virtual machine, refer http://kb.parallels.com/4859.
To locate the Windows virtual machine, please refer to this article, http://kb.parallels.com/117333
Let me know if you have any additional questions.