i've kept my laptop in hibernate mode and it turned on automatically why did this happen?can you explain please
thanx in advance
You'll probably have to disable "Wake on LAN"
The computer will wake if it detects internet activity. This can cause serious problem if you computer wakes while in a case (overheating).
website below will tell you how to disable it. it's for Vista, but it's the same for Win7.http://www.howtogeek.com/howto/windows-vista/fix-sleep-mode-randomly-waking-up-issue-in-windows-vista/