Windows 10: Start up / Boot problem - Bios issue UEFI / Legacy Wrong drive default

Discus and support Start up / Boot problem - Bios issue UEFI / Legacy Wrong drive default in Windows 10 Support to solve the problem; TEMP - Will addimages shortly Hi All, Had a few problems with a driver that messed up this machine. All sorted, but have had intermittent boot issues... Discussion in 'Windows 10 Support' started by supermonkey, Dec 16, 2018.

  1. Start up / Boot problem - Bios issue UEFI / Legacy Wrong drive default


    TEMP - Will addimages shortly

    Hi All,

    Had a few problems with a driver that messed up this machine. All sorted, but have had intermittent boot issues ever since.

    Sometimes it doesn't boot correct, showing the Windows "preparing automatic repair screen!. I then go to "troubleshoot", then "advanced options", then "UEFI firmware settings", then restart. This brings up the boot options menu from which I can select the correct drive.

    I checked "msinfo32" which shows that windows is set to legacy mode. So I thought I would check the BIOS settings match.

    It seems that I can only turn legacy on or off, I cannot turn UEFI on or off?

    As the images below show, the correct drive options are set under legacy, but it seems windows tries to boot in UEFI, fails then tries to repair.

    I can set the legacy mode off, but

    :)
     
    supermonkey, Dec 16, 2018
    #1
  2. dac81048 Win User

    Problem Regarding Bios Change from UEFI to Legacy

    I have hp pavilion p045tx with windows 10 pro. I recently install Ubuntu with windows 10 so for that I convert my bios setting from UEFI to Legacy mode for install third party software like wireless Driver and all in Ubuntu.
    But after every restart the bios setting change to default and that is to UEFI mode and that will cause an problem of no OS detect. Every time I have to go to bios setting and enable the legacy mode to start my OS. Can anyone suggest me what to do in this
    case.
     
    dac81048, Dec 16, 2018
    #2
  3. Ramuettan Win User
    Return to Legacy from UEFI - BIOS

    Hi There

    A while ago I was helped here to change from Legacy to UEFI. However, since then it seems, the Laptop (Latutide E6420) is running a bit slowly which was otherwise very quick until then. Now, it takes nearly a minute or so to boot up or shut down or even
    to close a file. Just a couple of days ago, I updated the latest BIOS for this machine recommended by Dell.

    I tried to go back to Legacy but the system was asking me to reset to UEFI or face boot problems. One advise said that I could disable 'Secure Boot' in Boot Manager and reset to Legacy. However, the Boot Manager is listed under UEFI Boot process and it only
    starts Windows. Is there any way as easy as I changed it? This is absolutely under the hope that all will be as normal as it was in the beginning. Please give your thoughts and advice. Thanks.
     
    Ramuettan, Dec 16, 2018
    #3
  4. newtekie1 Win User

    Start up / Boot problem - Bios issue UEFI / Legacy Wrong drive default

    [Problem] UEFI card on a legacy BIOS Mobo!

    AFAIK, almost all UEFI video cards have hybrid BIOSes so they will work with either UEFI or legacy motherboards. If it was a UEFI only card, then it wouldn't even boot in a legacy BIOS motherboard.
     
    newtekie1, Dec 16, 2018
    #4
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Start up / Boot problem - Bios issue UEFI / Legacy Wrong drive default

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