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HP Envy notebook goes into lock mode after login followed by black screen

HP Envy
Microsoft Windows 10 (64-bit)

Sometimes when I turn on my laptop - power cable not attached, either within minutes or immediately, I get a message that it's 'locking' - screen goes black - then after short while, computer turns off. 

 

Have gone through all bios, checked for hardware issues, check power source and all came back negative. 

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HP Support Agent
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HP Envy notebook goes into lock mode after login followed by black screen

@Sauda Welcome to HP Community!

 

I understand that the screen goes black after sign in to the computer.

 

Do not worry. Let's work together and get this issue addressed.

 

Please perform the below steps and check for the issue.

 

Hard Reset:

1) Shutdown the computer.  

2) Unplug all the Adapter and peripherals connected.  

3) Remove the Battery. ( not for Built-in Battery computer ) 

4) Press and hold down the power button for 15 to 20 seconds.  

5) Plug-in the Adapter and put the Battery back into the computer if it's a (removable battery)

6) Try to turn on the computer and check, If the issue persists continue next step

 

Set BIOS default and restart:

  1. Restart your notebook.
  2. During startup, press F10 repeatedly until the BIOS menu is displayed.
  3. Once the BIOS menu is displayed, press F9 to restore factory defaults.
  4. Select Yes to confirm.
  5. Press F10 to save changes and exit.
  6. Select Yes to confirm.
  7. The computer restarts using the default settings.

Here's a related post with a similar issue that seems to have helped others: click here

 

Keep us posted,

If you would like to thank us for our efforts to help you, 


Give us a virtual high-five by clicking the 'Thumbs Up' icon below, followed by clicking on the "Accept as solution" on this post, 


Have a great day!

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