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












1















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 support 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 support both disabled. I already made sure hibernate option is disabled in Windows










    share|improve this question









    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.























      1












      1








      1








      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 support both disabled. I already made sure hibernate option is disabled in Windows










      share|improve this question









      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 support both disabled. I already made sure hibernate option is disabled in Windows







      boot dual-boot grub2 partitioning






      share|improve this question









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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|improve this question









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      share|improve this question




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      edited 48 mins ago







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      asked 2 hours ago









      lissethamclissethamc

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