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Grub won't show Windows 10 but it shows Windows Boot Manager


GRUB does not detect Windowsunable to dualboot win XP with Ubuntu 13.04 on Asus Zenbook UX32aBoot linux on external hard disk - Send Grub RescueAdded one extra drive, old dual boot stopped workingDual Boot - Windows does not showunable to boot windows after installing ubutu16.04 alongside.GRUB doesn't show Win XP after Install with “alongside” optionhow to make the Device Partitioning Numbers, in Order {ex. “/dev/sda1 to sda5”}Ubuntu windows 10 Dual boot problemunable to boot to windows 10 after installing kubuntu 18.04 on second hdd using lvmDual boot Windows 10 and Ubuntu 18.04 - Boots immediately into Windows and not showing GRUB menu













0















I'm trying to start using Ubuntu. I already had Windows 10 in my hdd, I made a new partition for Ubuntu 18.04 and then installed it. Both OS are in the same hdd but in different partitions, but when I boot it shows the grub and it won't show Windows 10 option, it shows Windows Boot Manager (and if I pick this it will let me boot in Windows but it's slow). I already tried os-prober (from this question: GRUB does not detect Windows) and this is what it shows



/dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi


when I use fdisk -l this is what it shows (in Spanish, I'm sorry)



Disco /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectores
Unidades: sectores de 1 * 512 = 512 bytes
Tamaño de sector (lógico/físico): 512 bytes / 4096 bytes
Tamaño de E/S (mínimo/óptimo): 4096 bytes / 4096 bytes
Tipo de etiqueta de disco: gpt
Identificador del disco: C271E36A-B1BA-4B61-9C48-B90831A729D5

Dispositivo Comienzo Final Sectores Tamaño Tipo
/dev/sda1 2048 1023999 1021952 499M Entorno de recuperación de Windows
/dev/sda2 1024000 1226751 202752 99M Sistema EFI
/dev/sda3 1226752 1259519 32768 16M Reservado para Microsoft
/dev/sda4 1259520 1187666070 1186406551 565.7G Datos básicos de Microsoft
/dev/sda5 1187667968 1953523711 765855744 365.2G Sistema de ficheros de Linux


I'm not sure what should I do or what all of these means, I'm not used to linux.



In BIOS I have secure boot and legacy both disabled. I already made sure hibernate option is disabled in Windows









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    I'm trying to start using Ubuntu. I already had Windows 10 in my hdd, I made a new partition for Ubuntu 18.04 and then installed it. Both OS are in the same hdd but in different partitions, but when I boot it shows the grub and it won't show Windows 10 option, it shows Windows Boot Manager (and if I pick this it will let me boot in Windows but it's slow). I already tried os-prober (from this question: GRUB does not detect Windows) and this is what it shows



    /dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi


    when I use fdisk -l this is what it shows (in Spanish, I'm sorry)



    Disco /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectores
    Unidades: sectores de 1 * 512 = 512 bytes
    Tamaño de sector (lógico/físico): 512 bytes / 4096 bytes
    Tamaño de E/S (mínimo/óptimo): 4096 bytes / 4096 bytes
    Tipo de etiqueta de disco: gpt
    Identificador del disco: C271E36A-B1BA-4B61-9C48-B90831A729D5

    Dispositivo Comienzo Final Sectores Tamaño Tipo
    /dev/sda1 2048 1023999 1021952 499M Entorno de recuperación de Windows
    /dev/sda2 1024000 1226751 202752 99M Sistema EFI
    /dev/sda3 1226752 1259519 32768 16M Reservado para Microsoft
    /dev/sda4 1259520 1187666070 1186406551 565.7G Datos básicos de Microsoft
    /dev/sda5 1187667968 1953523711 765855744 365.2G Sistema de ficheros de Linux


    I'm not sure what should I do or what all of these means, I'm not used to linux.



    In BIOS I have secure boot and legacy both disabled. I already made sure hibernate option is disabled in Windows









    share







    New contributor




    lissethamc is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.























      0












      0








      0








      I'm trying to start using Ubuntu. I already had Windows 10 in my hdd, I made a new partition for Ubuntu 18.04 and then installed it. Both OS are in the same hdd but in different partitions, but when I boot it shows the grub and it won't show Windows 10 option, it shows Windows Boot Manager (and if I pick this it will let me boot in Windows but it's slow). I already tried os-prober (from this question: GRUB does not detect Windows) and this is what it shows



      /dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi


      when I use fdisk -l this is what it shows (in Spanish, I'm sorry)



      Disco /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectores
      Unidades: sectores de 1 * 512 = 512 bytes
      Tamaño de sector (lógico/físico): 512 bytes / 4096 bytes
      Tamaño de E/S (mínimo/óptimo): 4096 bytes / 4096 bytes
      Tipo de etiqueta de disco: gpt
      Identificador del disco: C271E36A-B1BA-4B61-9C48-B90831A729D5

      Dispositivo Comienzo Final Sectores Tamaño Tipo
      /dev/sda1 2048 1023999 1021952 499M Entorno de recuperación de Windows
      /dev/sda2 1024000 1226751 202752 99M Sistema EFI
      /dev/sda3 1226752 1259519 32768 16M Reservado para Microsoft
      /dev/sda4 1259520 1187666070 1186406551 565.7G Datos básicos de Microsoft
      /dev/sda5 1187667968 1953523711 765855744 365.2G Sistema de ficheros de Linux


      I'm not sure what should I do or what all of these means, I'm not used to linux.



      In BIOS I have secure boot and legacy both disabled. I already made sure hibernate option is disabled in Windows









      share







      New contributor




      lissethamc is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.












      I'm trying to start using Ubuntu. I already had Windows 10 in my hdd, I made a new partition for Ubuntu 18.04 and then installed it. Both OS are in the same hdd but in different partitions, but when I boot it shows the grub and it won't show Windows 10 option, it shows Windows Boot Manager (and if I pick this it will let me boot in Windows but it's slow). I already tried os-prober (from this question: GRUB does not detect Windows) and this is what it shows



      /dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi


      when I use fdisk -l this is what it shows (in Spanish, I'm sorry)



      Disco /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectores
      Unidades: sectores de 1 * 512 = 512 bytes
      Tamaño de sector (lógico/físico): 512 bytes / 4096 bytes
      Tamaño de E/S (mínimo/óptimo): 4096 bytes / 4096 bytes
      Tipo de etiqueta de disco: gpt
      Identificador del disco: C271E36A-B1BA-4B61-9C48-B90831A729D5

      Dispositivo Comienzo Final Sectores Tamaño Tipo
      /dev/sda1 2048 1023999 1021952 499M Entorno de recuperación de Windows
      /dev/sda2 1024000 1226751 202752 99M Sistema EFI
      /dev/sda3 1226752 1259519 32768 16M Reservado para Microsoft
      /dev/sda4 1259520 1187666070 1186406551 565.7G Datos básicos de Microsoft
      /dev/sda5 1187667968 1953523711 765855744 365.2G Sistema de ficheros de Linux


      I'm not sure what should I do or what all of these means, I'm not used to linux.



      In BIOS I have secure boot and legacy both disabled. I already made sure hibernate option is disabled in Windows







      boot dual-boot grub2 partitioning





      share







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      lissethamc is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.










      share







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      lissethamc is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      share



      share






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      asked 3 mins ago









      lissethamclissethamc

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