Hp pavillion dv6000 shuts off and wont power back up

Make sure laptop is having sufficient power on battery remove the battery and directly connect the main power and see it is switching on or not otherwise connect the battery and connect the power adopter and don’t switch on the laptop keep for 10 minutes and then switch it on.

Remove the battery, push the power button for 15 seconds. Leave the battery out and power back on with just the AC adapter. If your system boots back up, go to the control panel> Power Options > Go through the tabs and turn off system hibernation and all sleep modes. Set the power settings for "closing the Lid" to "Do Nothing". Make sure this is set for both battery and Plugged in settings. The thing is that sleep and hibernation are not good for these computers and tend to corrupt their registry and windows files, so it is better to turn them off and just let the laptop run.