It's on the web so I won't go on. More at http://www.tenforums.com/tutorials/2859-hibernate-enable-disable-windows-10-a.html
There could be outdated BIOS and post windows 10 work that needs to be done. That is, I'm running into folk that upgrade or install 10 but didn't know what to do after. Even I can't know this area as there are some million different PCs and yours is the one I don't know.
But I can share my guide on post Windows installs. I find the drivers from the maker for motherboard chipset, audo, video, lan, WiFi and install in that order.
My HP Pavilion a1624n will not hibernate by itself after installing Windows 10. It will go to sleep with no problem.
It used to work with no problems in Windows 7. I have checked the advanced power settings, reset them to normal and then back to Hibernate. At first I thought it was Outlook keeping it from hibernating. But even if I exit all programs (outlook, chrome, firefox, etc.) it just won't hibernate. I created a shortcut in Windows 7 (C:\Windows\System32\rundll32.exe powrprof.dll,SetSuspendState 0,1,0) on my desktop that will make it hibernate, but I miss being able to walk away and forget about it feature of hibernate.
I first did the upgrade Windows 10 and then a clean install of Windows 10.
Any ideas to fix this?
Thanks in Advance.