How do I switch from Legacy BIOS to UEFI?

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  1. Posts : 5
    Windows 10 Home x64
    Thread Starter

    Thanks for the reply. No, this isn't even an option for me. My computer's BIOS is in Legacy mode not UEFI. Therefore, I don't even get this option. But I'm looking for one like it. Nothing I've tried has turned up a good way of accessing the BIOS settings in Legacy. And upon looking at Sony Vaio SVJ202 motherboards on eBay, it doesn't appear that my motherboard has a CMOS battery I can use to reset the BIOS to it's factory UEFI mode. In short, the roadblock is that I need to find some kind of firmware settings or reset the firmware but because I'm in Legacy mode, I don't know where or how. It's not as easy as it is in UEFI mode.
      My Computer

  2. Posts : 56,888
    Multi-boot Windows 10/11 - RTM, RP, Beta, and Insider

    pic of your MB

    How do I switch from Legacy BIOS to UEFI?-2020-02-14_04h52_28.png
      My Computers

  3. Posts : 7,626
    Windows 10 Home 20H2

    kelsey said:
    I took as much of the computer's back apart as I could, but I couldn't find a CMOS battery.
    I'm afraid you have to take your whole computer apart.
      My Computer

  4. Posts : 70,007
    64-bit Windows 11 Pro for Workstations


    Normally, you may be able to press the power button to turn on your Sony Vaio laptop, and then immediately keep tapping the F2 key or ASSIST button (may vary) until you see the boot menu.

    From there, you should be able to use the arrow keys to select Enter Setup, and press Enter.
      My Computers

  5. Posts : 7,626
    Windows 10 Home 20H2

    "Enter Setup" is at the bottom of my boot menu.

    How do I switch from Legacy BIOS to UEFI?-f12-boot-menu-.jpg
      My Computer


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