I bought a new HP laptop with Windows 8 to replace an old laptop running Ubuntu. Using Acronis I cloned the Ubuntu installation over to my new laptop... accidentally overriding the Windows installation.   No big deal, I thought. It was a new computer and I didn't have anything special on it so I popped a Windows 8 disc in the drive, and loaded onto my second partition.  Now, the computer only boots to Windows 8 and I have no idea how to get it boot to Ubuntu.  I have already turned off the UEFI and Secure Boot options from the BIOS but I have no idea where to go from here.
1096
I installed Windows 7, which ate Ubuntu's boot file. When starting up the computer, it now goes straight to Windows, without giving me the option of booting Ubuntu.   How can I get Ubuntu back?
105522
I have a HP laptop with Windows 8.1 and Ubuntu 14.04 dual booted. I used to use F9 key to enter boot menu and chose Ubuntu and then GRUB would appear where I would chose Ubuntu again. This was working fine all this while. Either a hardware change or a Windows update has caused the Ubuntu option to go missing from the boot menu itself.  How do I fix this and boot into Ubuntu again?
67996
I have an HP 500-413nl (a desktop) and Windows 10 keeps changing the boot order in UEFI/BIOS every time, so that if I want to boot Ubuntu 16.10 (64-bit) I always have to press F10, thus entering the BIOS setup and changing boot order…  Is there a workaround for my PC? What should I do? I'm a little desperate.  P.S.: I have already disabled "Secure boot" and "Fast/quick boot" in the BIOS and "Fast startup" in Windows options / Control panel.
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I used a live USB to install Ubuntu 14.04 and completely erase windows 8.1, the installation went fine but when I restarted the computer Ubuntu wouldn't boot from my HDD, instead it came up with try Ubuntu or install Ubuntu so I restarted without the live usb plugged in and I got an error message Reboot and select a proper boot device or insert boot media in selected boot device and press any key.  I read a lot of posts about people that had similar problems but so far none of the solutions that worked for them have worked for me.  I also ran boot-repair but that didn't fix the problem either.   Here is the link from boot-repair   Please any help would be appreciated.  My laptop is a Toshiba Satellite U50D-A notebook with AMD A6-5200 processor
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I have HP G56 laptop and it originally came with Windows 7 which microsoft updated to windows 10 for free. I did clean install and so i don't have option to go back to windows 7.   I want to try Ubuntu as after upgrading to windows 10, my laptop runs slow. I have created bootable USB several times but can't make my laptop to boot. I saw tutorials and already setup bios to boot from USB first and also turnoff fast boot from power option. I can however use other USB for windows 10 that i have and that works but not from Ubuntu USB
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I installed windows 10 on my laptop in UEFI mode with HDD GPT disk format, then I installed Ubuntu 16.04LTS on another partition. So I have Ubuntu dualboot with Windows 10 now.  I also installed rEFInd (it's like GUI for you to choose between different OSs) because I don't wanna use Grub2 as the default bootloader. Now I want to have Windows 7 too, but when I boot from the USB stick, an error screen showed up saying something like  the windows boot manager is having problems due to a recent hardware change   My system is still working fine so I don't know if the problem came from my system or if the setup I want is impossible.
22989
I have a laptop with Ubuntu installed as the only OS. I also have a USB stick with a Windows 7 installation on it. I want to install Windows from the USB stick on my laptop but when I try to restart the laptop to get access to BIOS, I can't seem to find the command for it, its like it skips everything and just says Ubuntu and then takes me to the login screen.  How do I change the boot priority to USB in Ubuntu?
1236
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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I have an Ubuntu 12.04 / Windows 7 dual boot. After installing Ubuntu my computer reboots straight to Windows. There is no option to boot Ubuntu.  Specs:   OS: Windows 7 Home Premium     CPU: Intel i5 2500k     mobo: ASUS P8Z68-V Pro     GPU: GeForce GTX 570      SSD: Corsair 120GB (Windows 7)     HDD: WD 1TB      I select the USB drive in the BIOS and boot to it and choose install. I select to manually configure partitions, partition the 200 GB of unallocated space on my 1 TB HDD into 16 GB swap file, 30 GB / ext4, and 154 GB /home ext4.   I made sure that the bootloader is installed on the Corsair 120GB SSD (where the Windows boot is) and the installation goes smoothly.  When I reboot after the install it runs through the BIOS straight into Windows. I have tried upwards of a dozen times and I have also tried with Linux Mint. I have also redownloaded the ISO and used two different programs to create the live USB.   The installation seems to have gone well, as after the installation I can see the partitions I have created in Windows Device Manager.       I currently run Lubuntu on my laptop, but it is not a dual boot. I'm assuming this is a bootloader issue and I am assuming that inside those partitioned files in my screenshot there is a working Ubuntu 12.04. I just have no way of getting to it.    Update: (copied from comment)  I booted using my Ubuntu live USB and used the Boot-Repair tool suggested in .   Upon opening the tool I saw that it was recognizing my SSD as a removable drive and defaulting to install on the HDD. Once I realized that I was able to force install onto the SSD. My computer can now boot Ubuntu.
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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 had windows 10 but during a reset, it died ( I know my bad ). So I am attempting to wipe the drive and install ubuntu from a clean install but whenever I select to install ubuntu it only gives me a black screen. It's in UEFI and secure boot.  Can anyone tell me what I'm doing wrong?
44
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 went ahead and installed windows 10 on my windows 8 and Ubuntu dual boot PC. All went smooth and Windows 10 works perfectly however the computer automatically boots to Windows and the grub launcher is missing. The partitions are still there I just need some help getting Ubuntu back. Thank you in advance!   Edit: I found a way around it. I don't know of this works for everyone but I went in to the control panel and went to update and recovery. Then I went to recovery and booted into uefi.  Then I selected boot from device and my Ubuntu partition was there and I could boot into it.  Feel free to post other solutions though!
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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!
83400
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!
107642
I want it to be look like this:    I have an HDD and an SSD in my PC, I want to install Ubuntu to SSD, I have windows on HDD. I want to be able to boot ubuntu from the windows 10 uefi boot manager. How do I do it?
111040
I wonder if someone can help me? I am fairly new to trying to actually understand and use computers myself rather than just buying whatever Windows/Mac wants me to! You will get a giggle from my flawed attempts anyway :-)  I would like to start using Ubuntu on my PC, just got a new harddrive and did have a borrowed windows 7 disk as was planning to temporarily install it so i could get ubuntu. However I didn't have high enough spec hardware for win 7 (I think it is due to only 1gb ram, i do have 64 bit technology and a 1tb harddrive). I am quite happy to install 32 bit ubuntu and hear it is easier the use than 64 anyway.  So I have one other rubbish mini laptop (windows xp) which i am trying to use to get ubuntu onto a usb (laptop has no cd drive) so i can install it on the pc. First tried just downloading ubuntu 13.04 desktop onto a usb and trying to boot the pc from it which gave the message 'no operating system'. Then I tried this to create a bootable usb which sounded promising:  . However then it starting asking for my saucy desktop iso in order to install it onto the usb stick, can't really manage to find out what a saucy desktopp iso is, maybe a mirror image of an operating system, no idea why i would need that.  So in short, I'm lost. All I can think of is getting windows xp somewhere so i can get my pc to work and install ubuntu from the internet on that, or going to a friends house in the hope that creating a bootable cd is easier than creating a usb.  Sorry for my general ineptness and hope someone can help!