Help! I had a dual-boot of Ubuntu and Windows 8.1 on my computer. Last night I decided to "uninstall" Ubuntu. Rather than re-install the Windows MBR I decided to just edit GRUB to timeout at 0, with the default choice as Windows. I restarted my computer and it boot just fine into Windows. I removed all the Ubuntu partitions from Disk Management (being careful not to remove the partition with mount point /boot/efi) and reclaimed the unallocated space.  Today I turned on my computer and a black GRUB screen came up with the line "Minimal BASH-like line editing is supported. For the first word, TAB lists possible command completions. Anywhere else TAB lists possible device or file completions"  How do I boot in to Windows 8?!
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I have absolutely no experience with Linux, and I desperately need to get my computer back up and running again with Windows.  How do I remove Ubuntu and reinstall Windows?    Editor's note: many of the answers are about removing Ubuntu from dual-boot but keeping Windows (which is a bit complicated), while other answers are about removing Ubuntu from single-boot (which is easy: basically just format the disk while installing Windows). The question as written is ambiguous between dual-boot or single-boot.
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I am just about to install Ubuntu alongside Windows, just need to make sure I know how to remove it later.  I know from past the major problem was when I removed Ubuntu, I either still got into the GRUB booting menu, or I couldn't boot at all, and had to format HDD and start over. Now I found an article practically saying the Windows loader should be back upon deleting Linux partition, so I want to make sure:  If I have Windows and Ubuntu dualboot, and I want to get back to Windows booting quickly itself without choosing from any booting menu, is it enough to just delete the Ubuntu partition? Will the Windows loader override GRUB?  Thanks!
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I have a Lenovo Ideapad with pre-installed Windows 8.1 In order to install Ubuntu I disabled secure boot and changed boot mode from UEFI to Legacy. This allowed me to install Ubuntu and the grub loader is also showing an option to either boot into Windows or Ubuntu, but whenever I try booting to Windows it says Cannot load.  This happens because the boot order is set to Legacy mode and Windows 8 will boot only with UEFI. I am unable to access my BIOS from where I can change the boot order. I press F1/F2 on booting but it doesn't load the BIOS, and directly goes to the grub loader screen.  How can I make my Windows 8 run along with Ubuntu?
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Actually, I have done something terribly wrong. I did not want Ubuntu 13.04 on my PC anymore. I was sick of dual-booting every time the PC starts, and I wanted to return to Windows as well. (My version is Windows XP MCE SP2). The mistake I did is that I simply used EASUS Partition Manager to delete the Ubuntu partitions. But what went wrong here is that, even when I did it, the GRUB keeps trying to load. It says that GRUB could not be found and finally ends up running GRUB Rescue.  I cannot "Repair" my PC using the Recovery Discs (containing Windows XP MCE), it only gives me an option to press "F", which will format the HDD to re-install the OS.  Although, the best part is that I can still log in to Windows. Because, when I boot from the CD's, it does not give me a "Repair" option, but only "Format" and "Quit". By using "Quit", it takes me straight to Windows.  But I do not want to keep doing this same thing every time I start my PC. Neither do I want to Format my Hard Disk. I have tried a few applications, like EasyBCD which do nothing. So I want a good solution for it.  Is their any way to install MBR through Windows or maybe Ubuntu terminal? Even if i can't access Ubuntu again? And what after installing Ubuntu again. Any safe method to uninstall it?
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I have both windows 10 and ubuntu 16 installed on my system.   Lately the system is automatically booting to windows. To boot to ubuntu, I first have to pause startup by pressing escape and then boot into ubuntu.  I know that I have to change the boot order to Ubuntu  but am not able to do so and the grub customiser helps to change only the boot order in grub menu to the best of my knowledge.  What should I do? I am unable to find any way to change the boot order in bios
44050
I was trying to create a dual boot of Windows 8 and Ubuntu. I successfully installed Ubuntu on the hard disk but it wasn't able to boot so I went through boot-repair which said that I should put a certain file as EFI. I did that, restarted and only Acer logo appeared with nothing else. F2 didn't work, I couldn't get to BIOS any other way.  What I have tried:   Reseat the RAM Plug-in, plug-out hard drive Trying to plug only a bootable flash drive Trying to boot from CD Downloaded BIOS update from the acer website, but it only has a version from within Windows (which I can't access). Shorted JCMOS1 jumper for 20 seconds after which the ACER logo dissapeared and insted:   A black screen appears after I press the power key for about 5 seconds and then only a message "Press  to enter Setup." appears If I hold Fn+Esc and then power up, system info appears (Insyde H2O EFI 3.7, Copyright... System BIOS version: v2.13, Processor type etc) and the "Press  to enter Setup." on the bottom On pressing F2 the message "Press  to enter Setup." dissapears but nothing happens    Any other ideas are very welcome!  Thanks!
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I have a dual-boot Asus notebook and I almost-accidentally deleted every boot option with EasyBCD.  Now I can only load Ubuntu, because there are no more boot options on the Windows partition.  Is there a way to boot on Windows again?  I also have a recovery partition (factory reset from Asus), but I can only access it when the first boot screen from windows appears (pressing F9). I can create a new boot option at BIOS, but I don't know what to put on the EFI file patch there. There's some .EFI files on the recovery partition...
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I have got a newly bought ASUS N56V with Windows 8 preinstalled.  I needed to install Ubuntu so i partitioned the disk and after having disabled the Secure Boot option from Windows 8 i successfully installed Ubuntu 12.10 from a Live USB. The problem is that if i try to access both to Windows 8 (loader) and Windows Recovery System (loader) from the GRUB menu, these two errors show: can't find command 'drivemap' and invalid EFI file path and it goes back to the grub menu.  In conclusion I do not have access to my Windows 8 partition but can only use Ubuntu. How can I solve the problem? I am pretty new to the matter.  Thank you!
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I installed Windows on my computer, followed by an installation of Ubuntu. However, now I'm unable to boot into my Windows install.  What can I do to fix this?
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Soooooo, I seem to have myself in a very particular situation. Let me start from the beginning, I set up dual boot with Windows 10, and Lubuntu. Everything went according to plan. I then decided that I wanted to remove dual-boot. I looked on several articles some saying to use bootrec.exe, to repair and remove it but then I realized "It doesn't use the windows boot manager... it uses grub." So with this knowledge I searched for guides on how to remove grub. I found a guide () I could not access my system drive, so I dual-booted into Lubuntu and used root to access the EFI folder and deleted the "ubuntu" folder and rebooted to a happy little message saying: Reboot and Select proper Boot device or Insert Boot Media in selected Boot device and press a key_ . I realize that all my data is still there. I realize that in deleting the "ubuntu" folder that I deleted critical files part of the loading of grub. I now need to somehow replace these files, and get back to Windows 10.  Sidenote: I don't have bootrec.exe as a command. I checked this before I deleted the grub files.  Thanks for the help, -r
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I have a Lenovo IdeaPad Y400 that came pre-installed with Windows 8. I would like to run Ubuntu alongside it in a dual-boot configuration. I've spent the past week fiddling around, re-installing both Windows and Linux in various configurations, and I've come awfully close to success, but seem to have hit a snag with Grub.  For my most recent attempt, I took the following steps:   Disabled Secure Boot Re-imaged Windows 8 from a hidden recovery partition, effectively restoring the machine to factory state Activated an option called Legacy Support in the BIOS (or is it UEFI now?) Booted Ubuntu 13.04 x64 from a USB stick, chose "install alongside Windows" and accepted all default options After a restart, found that I could boot Ubuntu, but could not boot Windows Once into Ubuntu, I ran Boot Repair with recommended settings and accepted all defaults. When Boot Repair finished, I was presented with the following message:      The boot files of [The OS now in use - Ubuntu 13.04] are far from the   start of the disk. Your BIOS may not detect them. You may want to   retry after creating a /boot partition (EXT4, >200MB, start of the   disk). This can be performed via tools such as gParted. Then select   this partition via the [Separate /boot partition:] option of [Boot   Repair]. ()    I followed the instructions at the url in the message, creating a 1GB EXT 4 partition near the start of the drive  when I tried to run Boot Repair again, the "Separate /boot partition" option on the "Grub Location" tab was disabled.  The new partition is /dev/sda11 and has the label GRUB. On restart, I get the following error message:      error: file '/boot/grub/i386-pc/normal.mod' not found.    grub rescue>    However, if I manually choose the boot partition by hitting F12, I can boot into Windows no problems. Selecting Ubuntu from the boot device menu gives me a Grub menu with the following options:      Ubuntu      Advanced options for Ubuntu       Windows UEFI recovery bootmgfw.efi      Windows Boot UEFI recovery       Windows UEFI recovery LrsBootmgr.efi      Windows Boot UEFI recovery bkpbootx64.efi       Windows Recovery Environment (loader) (on /dev/sda3)       Windows 8 (loader) (on /dev/sda5) System setup    Selecting Ubuntu from this menu allows me to get to my Ubuntu desktop. I haven't tried the other options yet for fear of losing the progress that I've made.   So it looks like I have successfully dual-booted the machine, but that Grub is broken for some reason or another.   My current partition scheme can be seen at:   Thanks in advance - Jonathan
82679
How do I access the recovery mode in Ubuntu 18.04? I don't see any form of grub bootloader when the system boots - it just goes straight into the OS.
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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.
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Today I installed Windows 8.1 and it broke my GRUB. I tried to run the boot-repair GUI on a live session of Ubuntu but after the restart of the PC GRUB displays ONLY Ubuntu.   Before the installation I had on the first HD Ubuntu installed alongside with Windows 7 and the grub displayed both of them without problem.  After I installed Windows 8.1 on the second HD the boot loader(?) was replaced with the Windows one and I could select only between Windows 7 and 8 to boot, but not Ubuntu.  How can I fix GRUB now? I wish GRUB could displays all the three OSs (even if different HDs). If not possible I wish I could just choose which HD to boot and then the grub to displays correctly the OS of that HD.  This is the  (broken link).
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I bought my PC with Windows 10 on it, later installing Ubuntu for dual-booting. Recently, I wanted to replace the HDD inside with an SSD of the same size, so I copied all the partitions to the SSD (GPT partitioning) using GParted and installed the SSD in the laptop. On startup, GRUB is loaded and I can:  Boot Ubuntu normally Select the &quot;Windows Boot Manager on /boot/sda1 or select bootmgfw.efi manually, however it loads a Recovery BSOD, stating the following with options to access the recovery environment (F1) or boot parameters (F8) but those don't work (same screen): File: \WINDOWS\system32\winload.efi is missing or broken Error code: 0xc000000e    As I understand it, Windows Boot Manager is loaded but cannot find the Windows boot loader (probably because not looking into the right partition), so what I need to do is give the right partition to the boot loader, but I have no idea how to do that. How do I fix this, preferably something that can be done from Linux and doesn't involve a reinstall of Windows?
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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?
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I have Ubuntu Precise beta 2 and Windows7 set up to dual boot.  The set up had been perfect, until today, with a black screen presented when trying to boot Windows with a BOOTMGR image is corrupt, cannot boot fault.  Is there any way to fix this from Ubuntu, or is a reinstall my only option?