When turn on the computer, the screen is blue with a cursor on the upper left hand corner blinking.

[Iola6117]

When I turn on the computer, I see a blue screen with a blinking cursor on the upper left hand corner.  Passed all testing.  Hard reboot also does not work.  Cannot read reboot files from thumb drive or CD.

[Echo_Lake]

@Iola6117
Thank you for posting on the HP Support Community.

Let's try these steps:

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

Restore 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.

Hope this helps! Keep me posted for further assistance.
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