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this don't power off it but it goes to standby/hibernate . And when I start again , it is at same place. I already tried all this.
– Hafiz
Commented Feb 24, 2012 at 12:35
1

Have you held the power button down for 10 seconds? Or just pressed it? A probook 4520 will completely power down if you hold the power button in but will go to sleep / hibernate if you just press the power button
– Joe Taylor
Commented Feb 24, 2012 at 12:36
ah, I was pressing it for almost 5-6 seconds and thought that it was off, but thanks for mentioning 10 seconds as it really off exactly after 10 seconds. So HP don't give full control to OS. My mistake in thinking wrong way.
– Hafiz
Commented Feb 24, 2012 at 12:40
No problem, hope it helps. Most computers have this feature built in to thier physical construction, helps when all else fails.
– Joe Taylor
Commented Feb 24, 2012 at 12:43
The "Hold power button to shut-off completely" feature is a standard BIOS feature to be used as a last resort when OS is not shutting down properly. It's there in all computers with soft-power-buttons (power buttons that inform OS that they have been pressed). If holding doesn't work, the true last resort to simply remove all power sources (battery, AC adapter).
– ADTC
Commented Feb 24, 2012 at 19:28

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