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HP Customer Support - Knowledge Base

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Fix and resolve Windows 10 update issue on HP Computer or Printer. Click here

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Audio or sound issues? Try our automated HP Audio check!

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Fix HP Printer issue on macOS
A [software component] will damage your computer message displays when printing or while installing - Click Here

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Create an HP account today!
Connect with HP support faster, manage all of your devices in one place, view warranty information and more. Learn more

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HP Notebook PCs - Power Alternates Between Battery and AC Power

The notebook PC may revert to battery power even though the AC power adapter is connected.

Use one of the following solutions to correct this issue:

Reset the power supply

Disconnect the notebook from any docking station or port replicator it may be attached to. Also remove printers or any other peripherals.
Disconnect the AC adapter.
Remove the battery from the notebook.
Connect the AC Adapter without the battery and turn on the notebook.
Check all connections to ensure they are not loose.

If the AC adaptor connection to the notebook is loose, the connector may be damaged and require repair. Contact HP service and support further assistance.
Press and release the Power button to start the computer.
- If the notebook starts, then the AC adapter is functioning properly. Connect the battery and observe what happens. If the notebook starts to flicker between battery and AC power then continue to Reinstall the Windows Operating System.
- If the Power LED is off, then the AC power adapter needs to be replaced. Contact Hp service and support for assitance.
- If the power LED is on, but the notebook PC does not power on, then the notebook PC needs to be repaired. Contact HP service and support further assistance.

Reinstall the Windows Operating System

To reinstall the Windows Operating System see HP Notebook PCs - Repairing or Reinstalling the Operating System

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Country/Region: Flag

Thailand

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Examples: "DeskJet Ink Advantage 2130 paper jam", "TouchSmart 9100 bios update"