cmos invalid, battery charged but pc won't stay on when unplugged

[HOUSECHURCH]

1. Error Message: CMOS CHECKSUM IS INVALID

2. BATTERY FULLY CHARGED BUT LAPTOP WON'T STAY ON WHEN UNPLUGGED

3. HP 15 Laptop, Windows 11

[Nal_NR]

Hi @HOUSECHURCH,

Welcome to the HP Support Community. 

I'd be happy to help you! 

Update the Bios by selecting the current OS version. Click here

BIOS updates can sometimes fix stuff like this. Let the BIOS update do its thing if you decide to do the update. Be patient.

BIOS updates can make things worse if the PC is shut down during the update or you lose AC power.

Hope this helps! Keep me posted for further assistance.

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

[HOUSECHURCH]

Good Morning, EIohi.

Thank you for replying to me.

I tried doing what you said but my OS is 23H2, which is not listed in the options when I want to update.

Is there some other way I can resolve this issue?

Thanks.

Geri

[helpppp8302]

im trying this same step and it keeps telling me not enough space? there's nothing on my computer to take up space