How to prevent Windows 10 from shutting down at night?

Windows 10 Pro, (an upgrade to Windows 7), keep shutting down nightly.
This needs to be prevented.
Are there any settings or perhaps patches that could prevent a newly upgraded Windows 10 o/s from shutting down every night?
Thank you.
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Iamthecreator OMIT Admin/EE Solution GuideCommented:
What model is it ?
Check your power plan in control panel. Might be just hibernation.

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100questionsAuthor Commented:
Thanks McKnife - I tried changing the settings so that it never Hibernates.  Will see what happens now.  
NB - When rebooting the system and not logging in, it would not shut down at night.  
Now with this recent change I will monitor and advise back.
"When rebooting the system and not logging in, it would not shut down at night" - if that confirms to be true, it would mean the powerdown or hibernation process is tied to a user account - that's ost unusual, but it could mean that there's an startup entry in that user profile that starts some kind of energy manager software that has its own power plan.
100questionsAuthor Commented:
Thank you.  Seems to be working.
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Windows 10

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