Windows 10: Windows is restarting for no reason and without warning.

Hello, I just want to ask real quick about this. But my laptop restarts without warning occasionally. It typically does this sometime after 10 PM. I looked up the causes of this problem:Computer overheatingMalwareOut of powerFailed hardwareBut it's none of these. This problem isn't very urgent to me, but it is very annoying. Does anyone know what's up with my laptop?Thanks

:)

 

Shutdown and Restart with no warning.

Hi Steve,

User profile corruption is one of the possible reasons why your computer keeps on shutting down. To troubleshoot the issue, we suggest creating a new user account and see if the same issues will occur on a different user profile. To do this, simply follow
the steps below:

• Select the Start button, then select Settings > Accounts > Family & other people >Add
  someone else to this PC.
• Enter a user name, password, password hint, and then select Next.

Once done with the steps, let us know how it goes so we can assist you further.

 

Hard drive/ OS issue

a guy suggested :

• shutdown
• unhooked HDD
• restarted
• yay !!
• reconnected HDD
• restarted
• yay !!

also , try method 3
How do I unlock the drive where Windows 10 is installed?

 

Automated Restart of Windows 10 PC

Hello,

If Windows suddenly restarts without warning, or restarts when you try to shut it down, it might be caused by one of several issues. An outdated driver and software conflict are some of the possible reasons. Having said that, we suggest performing
the following steps:

Step 1: Disabling the automatic restart option to view error messages.

Many hardware driver or operating system errors will cause the computer to display a specific error message before stopping the operation or shutting down the computer. However, if the Automatically restart option
is enabled, an error message might not be displayed despite an error taking place. Disable this option to allow the computer to display the error message.
Follow these steps to disable the Automatically restart option:

• 
  In Windows, search for and open View advanced system settings.
  
• 
  Click Settings in the Startup and Recovery section.
  
• Remove the check mark next to Automatically restart under System Failure, then click OK.
• Restart the computer.

Step 2: Checking for failed hardware.

Hardware problems can cause the computer to restart unexpectedly.

Let us know if that worked out for you.