Boot device not found error

[KNOW_MY_NAME]

What should i need to do now??

[asmita6658]

Hi @KNOW_MY_NAME

Welcome to the HP Support Community. I'd be happy to assist you with the "No boot device found" error.

Let's try these steps to perform a hard reset -

1. Shutdown the computer. 
2. Unplug all the Adapter and peripherals connected. 
3. Remove the Battery. 
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. 
6. Try to turn on the computer. 

Also, try restoring the computer -

1. Shutdown the computer. 
2. Turn the computer back on again and repeatedly tap on the ESC until a Startup menu appears. 
3. Press F11 once for System Recovery. 
4. Choose the Keyboard Layout. 
5. Click on Troubleshoot. 
6. Go to Recovery Manager and click on System Restore. 
7. Choose a Restore point or a Restore date when the computer was working fine. 
8. Click on OK to initialize the System Restore.
 

If the issue still persists, test the hardware - 

1. Shutdown the computer. 
2. Turn the computer back on again and repeatedly tap on the ESC until a Startup menu appears. 
3. Press F2 once. 
4. Go to Component test. 
5. From the list, run the Hard Drive (extensive) test. 

You may also refer to this document - HP Notebook PCs - Boot Device Not Found Error or Hard Drive Not Detected

Hope this helps! Keep me posted. 

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Have a great day!