E4310 cold boot issue

Hi all, just noticed a weird cold boot issue with my E4310 on Win10. Not sure if anyone had seen such an issue before.

On a cold boot with power plugged in, and battery plugged in, Win10 will freeze during the first boot up. It looks like Win10 was trying to initiate something before the screen freezes. Pressing the power to force a power off and pressing it again to start the system and all will be good.

On a cold boot running on battery, everything is alright. Win10 does not freeze on first boot up.

Not sure what is going on here. Anyone care to put forward their ideas and fixes?

 

Just an update. I've re-loaded the OS from scratch and that seems to have fixed the cold boot issue. Not sure why though.