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Can updating BIOs with broken CMOS be fatal?

Anonymous
2024-04-16T06:58:33+00:00

So, I think my CMOS battery is messed up (although it seems to only be effecting the clock), and I am curious about this thought. I got an automatic BIOS update on my HP laptop months ago, and recently my CMOS was likely messed up. Someone said that trying to upgrade with a broken CMOS can be terrible. If I did get a BIOS update again, would it just not install, or would my Windows 10 laptop be a goner?

Windows for home | Windows 10 | Windows update

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  1. DaveM121 871.3K Reputation points Independent Advisor
    2024-04-16T14:12:49+00:00

    Updating BIOS on a laptop with a battery that needs to be replaced will not kill your laptop it is only if your laptop switches off if it loses power while you are updating your BIOS that will cause problems with your laptop.

    But, it is important to replace the CMOS battery, because that tells Windows how to use your hardware.

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  1. Anonymous
    2024-04-16T14:02:07+00:00

    Alright so upgrading bios with broken CMOS = it can kill my laptop? or it just a general reminder for me to replace it?

    like I said, it seems only my clock is effected, no other issues

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  2. DaveM121 871.3K Reputation points Independent Advisor
    2024-04-16T13:40:48+00:00

    If you cannot open the laptop yourself, it would be best to get a PC Repair Shop to open it and replace the CMOS battery, they are very cheap to replace.

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  3. Anonymous
    2024-04-16T13:39:32+00:00

    laptop

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  4. DaveM121 871.3K Reputation points Independent Advisor
    2024-04-16T07:32:37+00:00

    Hi, I am Dave, I will help you with this.

    Honestly you should replace the CMOS battery on your motherboard, because BIOS performs many functions these days and is linked to Windows security, are you using a PC or a laptop?

    It would be best not to update your BIOS until the CMOS battery is replaced.

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