I have already installed Ubuntu 20.04 and made it first boot priority on my computer (asus 2019 zenbook) but my computer keeps jumping into the second boot option which is Windows 10.
6824
I installed Ubuntu on a Dell XPS 13 laptop that had Windows 10 preinstalled on it. I installed it from a USB flash drive on a partition. When I boot my computer I can only boot into Windows 10 and Ubuntu is nowhere to be seen.  If I boot into my USB then I can see that Ubuntu is installed, but I can't get to it from the BIOS boot menu.
95201
I have two separate SSD's. One of them has Windows 10 Pro installed, and the other has Ubuntu 14.04.3 LTS.   When my computer boots I get no grub menu to choose the operating system I want to boot into, it directly boots into Ubuntu automatically. I can boot into windows with on problems when setting its SSD as the first one in the boot sequence in the BIOS.  I have a third 2TB HDD that I use only for storage. Here is the information summary after running bootinfoscript  ============================= Boot Info Summary: ===============================   =&gt; Windows is installed in the MBR of /dev/sda.  =&gt; Windows is installed in the MBR of /dev/sdb.  =&gt; Grub2 (v1.99) is installed in the MBR of /dev/sdc and looks at sector 1 of      the same hard drive for core.img. core.img is at this location and looks      in partition 112 for .  sda1: __________________________________________________________________________      File system:       ntfs     Boot sector type:  Windows Vista/7: NTFS     Boot sector info:  No errors found in the Boot Parameter Block.     Operating System:       Boot files:        /bootmgr /Boot/BCD  sda2: __________________________________________________________________________      File system:       ntfs     Boot sector type:  Windows Vista/7: NTFS     Boot sector info:  No errors found in the Boot Parameter Block.     Operating System:       Boot files:        /Windows/System32/winload.exe  sda3: __________________________________________________________________________      File system:       ntfs     Boot sector type:  Windows Vista/7: NTFS     Boot sector info:  No errors found in the Boot Parameter Block.     Operating System:       Boot files:          sdb1: __________________________________________________________________________      File system:       ext4     Boot sector type:  -     Boot sector info:      Operating System:  Ubuntu 14.04.3 LTS     Boot files:        /boot/grub/grub.cfg /etc/fstab  sdb2: __________________________________________________________________________      File system:       swap     Boot sector type:  -     Boot sector info:   sdb3: __________________________________________________________________________      File system:       vfat     Boot sector type:  FAT32     Boot sector info:  No errors found in the Boot Parameter Block.     Operating System:       Boot files:        /efi/ubuntu/grubx64.efi /efi/ubuntu/MokManager.efi                         /efi/ubuntu/shimx64.efi  sdb4: __________________________________________________________________________      File system:       ext4     Boot sector type:  -     Boot sector info:      Operating System:       Boot files:          sdc1: __________________________________________________________________________      File system:       ntfs     Boot sector type:  Windows Vista/7: NTFS     Boot sector info:  No errors found in the Boot Parameter Block.     Operating System:       Boot files:         I have installed Linux before many times, however this is my first time installing it on a separate drive. Do I need to do anything extra/different seeing that is is installed on a separate drive to Windows?
55365
I have an X-series Asus laptop which I just bough about a month ago. I want to dualboot Ubuntu - Windows.  I can easily access LiveUSB with both UEFI enabled and disabled. I heard that there were problems with UEFI, so I disabled it. After I've installed the system I couldn't access it. It just boots to Windows straight.  Another unusual thing, that never happened to me before was that the partition editor wanted me to create a BIOS reserved area, which I did, but not at the beginning of the table.  Any ideas how to access the Ubuntu partition?  As far as I can guess both Windows and Ubuntu have to be both of the same type of boot, either Legacy or EFI. This is not the case of what I have now. So, if I reinstall Ubuntu in UEFI mode that correlates with my Windows type, will I then be able to boot into it?  I have a constraint, my laptop doesn't have a CD ROM, so I cannot reinstall WIndows, nor can I move around the Windows recovery partition.  This is the boot-repair report :    SOLUTION  I've enabled UEFI in BIOS, and reinstalled Ubuntu with UEFI enabled. It works fine now, although if I select Windows from the GRUB menu, it doesn't work. But I can live with that, since I can just select Windows boot from the BIOS instead.
75693
My system has 2 OS: Win 7 x64 and Ubuntu 12.10. I'm getting 2 Windows boot options: "on dev/sda1" and "on dev/sda2". What does this mean? What implications does this have for my continued Windows usage and for when I may remove the Ubuntu installation later?  Longer: I was running just Win 7 x64, then installed Ubuntu 12.10 along side it. Was trying to boot back to Windows 7 only to get a "disc reading error." Booted back to Ubuntu, grabbed boot-repair, then used mbr repair in boot-repair. System could then boot back to Windows but in fact always did so directly, i.e. always by-passed Ubuntu. Then I used the Ubuntu LiveCD to get boot-repair and used the "Recommended" repair option. Now everything works normally except for the issue described here. Both Windows options in Grub boot to the same Win installation I had previously.  p.s. Running "sudo update-grub" maintains both the Windows options.
14207
I am trying to migrate my current C drive with Windows 10 installed (250GB M.2 SSD) to a 1TB M.2 SSD. Both are physically installed in my PC.  I used Macrium Reflect to clone the drive to the new SSD, which was successful as they were both identical (except the extra unallocated space in the new drive). I made sure that the new drive was GPT.  I then restarted, and in the boot menu changed the boot priority to the 1TB SSD, with the 250GB SSD as second priority. The boot mode is in UEFI.  However, it didn't work and when booting, the windows icon was still next to the 250GB SSD meaning it had booted from that drive.  I then opened my PC and physically disconnected the 250GB SSD. When I started up the computer again it gave me a "Recovery - your PC needs to be repaired" error, so obviously it was not able to boot from the 1TB drive at all and was going into recovery mode instead when it couldn't find the second priority boot.   I then reconnected the 250GB SSD, but instead of booting it in second priority, I disabled it in the boot menu. But this still didn't work and windows is still booting from this drive (evidenced by the windows icon next to it).  I am at a loss as to why even after disabling it in the boot menu it is still booting from this drive and why cloning, setting the new drive as GPT and ensuring it is booting in UEFI doesn't seem to be working. I've spent hours googling this and am at a loss! Any tips would be greatly appreciated!  Thanks
63072
I'm trying to replace Win8 with Ubuntu on a new Lenovo IdeaPad S10  with 4gb mem,500gb h/d.  Drilling down, I disable "Secure Boot" on the bios boot tab, but the  only 2 options under UEFI Boot priority order are Windows Boot Mgr  and EFI Network.  No "Boot from USB" option.  Someone here kindly suggested a link which reported they got added options by changing  "Secure Boot Mode" under the "Security" tab to "Legacy" but on my PC,  that option isn't selectable, ie, the selection cursor just bypasses  that selection. The only 2 selectable options are "Reset to Setup Mode"  and "Restore Factory Keys".  Anyone know who/where the usual suspects are hiding? How to flush them out?
74728
The TL;DR, added in the edit:  The question is: How can I make the BIOS prefer GRUB over Windows Boot Manager on the same UEFI boot partition? The problem is not with Grub; Grub does the right thing when the BIOS starts it. The problem is not with &quot;the disk isn't bootable,&quot; because both the Windows UEFI bootstrap and the Grub UEFI bootstrap are bootable. The problem is which UEFI bootstrap the BIOS chooses to boot from.  I'm setting up a new computer, and want it to by default boot into Ubuntu, but have the option to select Windows on boot. This is especially important if power goes out and comes back; I won't even be in the house. I started out by installing Ubuntu 17.04 on my internal NVMe disk, partitioned with GPT to use half the disk, and a separate UEFI boot partition. GRUB boots that just fine, and I see the GRUB boot menu on start-up where I can select whatever items GRUB knows about. Then I installed Windows 10 Pro from a recently downloaded ISO. It installed Windows Boot Manager onto the same UEFI partition, and left the Ubuntu intact (great!) and that boots fine into Windows 10. However, it did &quot;something&quot; that makes the UEFI firmware immediately select the Windows Boot Manager rather than GRUB on power-up. The only way to boot Linux now is to use the BIOS boot manager (F11 on my BIOS) and select the GRUB boot loader manually. The UEFI BIOS knows that there are multiple bootable installs on the UEFI partition, because I can choose between them in the boot manager. However, when I'm in the setup menu in the UEFI BIOS, it just lets me choose &quot;UEFI boot my internal drive&quot; in the boot priority selection -- it doesn't let me choose which particular boot loader on that partition to use. And, by default, it chooses Windows, not GRUB. The internets (and this site) suggests that the old way to fix this is to run update-grub (so GRUB recognizes Windows) and then grub-install (to put GRUB back on the device.) I have done this, but unfortunately, it still has the behavior as described above, where the BIOS by default chooses Windows Boot Manager. (update-grub does find the Windows Boot Manager install, and adds that to the menu, and that menu item works when I manually choose the GRUB partition in the UEFI boot manager.) What can I do to make GRUB the &quot;default&quot; boot on my UEFI boot partition? Using a MSI X399 Carbon motherboard. Second edit: Because the correct answer ends up being mentioned in a comment to a response, I'll repeat it here: &quot;BCDEDIT&quot; in an admin shell on Windows is the working solution. The others don't work.
32509
I have a Asus Transformer Book T101HA and I am trying to  boot a bootable USB stick to dual boot a 2nd operating system (it is currently running Windows 10 as it was out of the box).  When I press ESC on start up to load the boot menu, I only get the following regardless of whether a bootable USB is plugged in or not.    I have also looked in the BIOS to look at the boot order but the options look very limited compared to others ive seen in the past. There is only on boot option and it can only be set to 'Windows Boot Manager' or 'Disabled' (there is no option for USB). There doesn't appear to be any ability to add new boot options.    Can anybody help me out with a way forward to booting from a USB?
30071
I installed Windows 8 and Ubuntu 12.10 on a 3TB GPT disk in UEFI mode.  Both can boot up OK.  Both operating systems created their ntries in the UEFI boot menu, there's an "ubuntu" and a "Windows 8" entry.  The boot order can be altered in the motherboard's UEFI setup.  I'd like to boot "ubuntu" first, because I set up GRUB 2 to be able to boot both systems.  But whenever I boot Windows 8, it changes the boot order so that it boots up first.  How can I prevent this?  Thanks a lot.  -- UPDATE --  I learned that bcdedit.exe can be used to manipulate the Boot Configuration Data in windows.  This is important because Windows synchronizes the BCD with the boot NVRAM, that stores the boot order.  Every time the {fwbootmgr} entry in the BCD is touched, the NVRAM is overwritten.  I modified this entry to load GRUB 2 first, and it did. However, after booting Windows 8, both the NVRAM and the {fwbootmgr} in the BCD reverted to the original order, that is, to boot Windows 8 first.  I'm really puzzled by this.  -- UPDATE 2 --  I managed to kinda fix the problem by creating a startup script at the group policy editor in Windows. The startup script issues a "bcdedit /set {fwbootmgr} DEFAULT {appropriate UUID}" command. This is BIG hack, and definitely NOT the soulution I want. I'd like Windows to feel OK at the second place after GRUB in the NVRAM.  So how can I do that?
112752
Trying to install ubuntu on a laptop. The "bios/uefi" has no uefi boot options &amp; the windows boot manager just kicks in. The only "option" is "boot from hard disk". So we tried to use efibootmgr to put grub to boot first.  When we run an efibootmgr -o xxxx,xxxx,xxxx command it seems like the order gets fixed but on reboot the windows boot manager still has control, then when we re-opened the live usb &amp; checked the boot order it remains unaffected.  What are other ways to change the efi boot order? Maybe by mounting the efi partition (in mnt) and doing what?
53847
I installed Ubuntu (twice actually) onto the same drive. I wanted to 'try again' since one of them didn't install correctly and the other installed differently, but it worked.   I was getting frustrated with the GRUB menu because it was really sloppy (There were two Windows options - one with the Windows bootloader to go into Ubuntu, and two different versions of Ubuntu from the first install for some reason and memtest, etc.).  In my attempts at getting rid Ubuntu to do a fresh installation, I went ahead and deleted the partitions that weren't swap or main via Windows 7. As I said, I am a noob.  Now, even though I though I completely got rid of Ubuntu, including the GRUB menu, when I boot my PC I am brought directly to GRUB Rescue. And from what I've found from other forums, GRUB rescue isn't even completely functional for me (it doesn't recognize any commands that it should support besides ls. It also returns unknown filesystem for any partition I try to view or boot.)  Is there any way that I can boot straight into Windows? I fear I may have gone about deleting those partitions in the wrong way. If so, what are my options?
105779
I have a Dell laptop in which I have dual booted Ubuntu with Windows 10. Usually the laptop loads the Grub menu first.  Recently I had some problems with Windows Bitlocker: every time I open Windows I am prompted to enter the Bitlocker password. In trying to solve this, I accidentaly clicked Ubuntu in the "Delete Boot" option in the boot sequence. Now the laptop boots directly to Windows without first loading the Grub menu.  Luckily, when I restarted the system and clicked "add boot option" I found the efi folder in which the Ubuntu folder is present. In Ubuntu there is fwgrupx64.efi, grubx64.efi, grub.cfg, shimx64.efi, mmx64.efi, and BOOTX64.CSV. On clicking grubx64.efi it shows "Boot name not found".  How can I recover the Grub boot menu?
10554
I've just upgraded to Windows 10 from Windows 8.1 on my partitioned laptop that has Ubuntu 14.04 installed. Grub no longer appeared on boot so I ran boot-repair from an Ubuntu liveUSB. This didn't seem to have any effect. I've checked and secure boot is still disabled. Log from boot-repair:  So what's next?  Update: I've attempted to use chroot to update grub from my Ubuntu partition. update-grub runs successfully finding both linux and windows boot manager but the process still doesn't have any effect. grub-install complains that it cannot find EFI directory (but I have mounted everything correctly).  Update2: Just discovered that running efibootmgr after chroot into ubuntu shows ubuntu as not being in the boot order at all. I manually changed the order and rebooted to discover that the bootorder was reset. I run in windows: bcdedit /set {bootmgr} path \EFI\ubuntu\shimx64.efi But this has no effect either even after reporting 'Operation Successful'.
66075
When I boot my computer, I get the Windows Boot Manager with Vista selected and Ubuntu as the other item in the list.  If I choose Ubuntu, I get the GRUB menu. I have updated GRUB menus before so I know how that works, but since Windows Boot Manager comes first, I don't know how to change the default.  I looked at this question:  But it seems that that uses GRUB, but the default I want to change is before GRUB even comes up. Any ideas?
121559
I have the following setup:  first partition is windows 7 partition second partition - ubuntu 12.04 partition  while installing ubuntu I installed grub2 bootloader to ubuntu partition  mbr contains windows bootloader  I have tried using EasyBCD to add entry to windows boot menu, with no luck - this entry just boots into grub4dos command prompt  how to add Ubuntu to windows boot menu?  please do not suggest installing grub2 to mbr or wubi..    Update:  I followed the instructions to install EasyBCD and add an entry to Windows boot menu to boot Ubuntu step by step. When I reboot both the NeoGrub Bootloader and the Ubuntu menu items take me to the screen below.
98471
I have a problem with Ubuntu 15.10  I have in my computer windows 10. Some days ago i decided to install Ubuntu in partition so i can have both in the same hard drive. The problem is that i cant get into ubuntu, i dont have the grub up so i always go to Windows in default mode. The only way to go into ubuntu is with the CD of installation, when im on the grub of the cd i press Esc, then i text exit in command lines and i go to a boot manager in which i can choose the ubuntu system. Its a strange think because it is the only way i can get into ubuntu, i will like to solve this problem. I try many tutorials already of solving this problem. I didnt get any solution so i will like to ask u before doing another tutorial. Thank u
19966
I have made a BOOTABLE USB installation of Ubuntu 13.04 using . I also have Windows 8 on separate partition. After I finished installing Ubuntu 13.04 from the USB, it went straight to Windows 8 without Grub showing to ask me to select an operating system, how can i fix this ? I don't have UEFI or secure boot.