PC Reboot after quit or change users (W 8.1)

[patrick gui]

Good morning
my PC in w 8.1 reboots unexpectedly during a session change.
The phenomenon occurs at the first session change, generally after a classic standby mode. That is to say that waking up goes well for the user concerned, but in the event of a change of user: computer reboots on the bios and the PC goes into standby.
And to get out of this standby, you have to do a real ON/OFF. Pressing the power button is not enough.
It's been 3 days since I put it on (avoid standby), and no problem. No issues since, regardless of the number of session changes.
I deactivated the sleep functions, the sleep actions associated with the buttons, ... but it's still the same.
mother board gigabyte z77 ud3h.

Thank you for your help

 

[Jody Thornton]

Strange that I have this same problem, but on a Vista notebook (which is a Dell Inspiron 1420 I think). It will be interesting to see what you find, just to see if there’s any relationship between the two issues.

A temporary fix on mine is disabling Aero, but that’s not easily done (or desirable) on Windows 8x.

 

[Bree]

my PC in w 8.1 reboots unexpectedly during a session change.

Welcome to Eight Forums.

Try turning off Fast Startup.

There have been many Windows 8 users complaining about various restart and shutdown issues when Fast Startup (aka: hybrid boot or hybrid Shutdown) is turned on. They report that their computers restart themselves as soon as the sign in screen appears, and some that their computer systems hang while rebooting or shutting down the system.

If you experience any of the issues, then you might turn off "Fast Startup" to see if it was the cause.

Fast Startup - Turn On or Off in Windows 8

How to Turn "Fast Startup" On or Off for a Hybrid Boot in Windows 8 and 8.1 Fast Startup (aka: hybrid boot or hybrid Shutdown) is a new feature in Windows 8 to help your PC start up faster after shutting down. When turned on, Windows 8 does this by using a hybrid shutdown (a partial hibernate)...

www.eightforums.com

 

[patrick gui]

thanks, i have change settings to ban the fast start up. I'll try tr reproduce the pbm (or not).