restore after replacing 3V cmos battery

[hoo_1]

Started Win 10 normally. Ran Norton 360 quick scan - no errors. Tried to start email, but system crashed. Upon reboot, cmos warning came on and pc would not boot. Tried another reboot, but got same cmos warning. Removed cmos 3V battery and it measured only 0.089V (less than 5 years old).  Replaced cmos battery (it measured 3.07V before installing. PC won't boot. Tried various hp diagnostic routines, but nothing booted pc. During Norton thumbdrive reboot attempt, got warning that it was wrong Windows version? It was saved during Norton full scan and backup last month so it should be current Windows version ??? 

[Irfan_06]

Hi @hoo_1,

Welcome to the HP Support Community.

Thank you for posting your query, I will be glad to assist you.

I see that you are facing an issue with your Laptop that is not booting up.

Please follow the steps below to perform an extensive system test to confirm if the hardware is working fine.

1) Shut down 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 the system test > extensive test

If the hardware is working fine. Please click on this link to perform a recovery on your Laptop.  (Take a backup of the data before performing a recovery)

Please mark this post as “Accepted Solution” if the issue is resolved and if you feel this reply was helpful click “Yes”.

I hope this helps.

Take care and have a great day ahead!

 Irwin6

HP Support