General :: Windows - Hibernate: Restart Instead Of Shutting Down

I dual boot Ubuntu and Windows and sometimes I just want to switch between the partitions without loosing the state of the OS I was currently working with. Currently to do that I just hibernate that OS and, when the computer turns off, I restart it and select the correct partition.

I do not really want to have to press the on button again every time I want to switch between partitions. I figure that there must be a way to make the hibernate action restart instead of shutting down.

How do I make the hibernate action restart instead of shutting down on:

Windows, or Ubuntu

P.S. It is more important to me that I can do this in Ubuntu than Windows (because of the way I use the partitions) therefore if one answer says the Ubuntu way and the other says the Windows way then I will mark the Ubuntu one as the answer and give the Windows one an upvote and a big thankyou.