P6 - 2303a won't sleep

Hello, I have a Pavilion p6 - 2303a running Windos 8.  The computer go to sleep if I press the sleep button, but will not sleep when idle. The screen turns off, but the computer continues to operate. I checked all my advanced power settings, Windows Update, HP system, all the drivers and the antivirus, I have completely removed Norton, disabled the network drivers and spent hours trying various online solutions.  Could you please let me know if there is anything I am missing.  It makes me crazy.

Thank you


Thanks for your reply.  I've tried these methods, does not.

I have narrowed down through a startup msconfig selective.  It seems that it was the process of windows Security Center that prevented from sleeping.  If I turn this off, he'll sleep as it is supposed to.

Tags: HP Desktops

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