Windows Power Settings take precedence over McAfee settings. If you think that perhaps VirusScan should have 'keep Windows awake until scan finished' or 'shut down Windows when scan finished' options in the settings then you might want to suggest it here: https://community.mcafee.com/community/home/ideas
I tried your suggestion of adding a new product idea via your link. But:
- I could not find any way of doing that;
- When I clicked on the new idea button, I got a message that I was not authorized to use it!
I feel that this Community site is, like the McAfee support site, almost impossible to navigate concisely. If a new user does not know his/her way around such sites, there is no means of learning it.
I see you got it to work. I voted up the idea. Good luck ;-)