After I installed ubuntu I tried to install windows back, around 3 weeks after. Now every time I try to reinstall Windows it says:  "Please insert proper boot device"  After uninstalling ubuntu it is still a boot partition in the bios. Does anyone know how I could install Windows back? The only reason why I want to do this is because Ubuntu can't play many games and I am a PC gamer.
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.
16981
After an installation of Ubuntu 12.04, erasing an old partition with Ubuntu 10.10, I can't get grub to load. I can't access my Windows 7 partition either  I get the message:  &gt; error: no such device: 58ABF29C...   grub rescue&gt;   I suppose my master boot record got erased/corrupted. How can I check and fix this?
29520
Not sure if the title is specific enough, so here we go:  I crashed my Windows pc, and now I want to install Ubuntu on that computer. I'm currently using my Mac, as it is the only operable computer I have left. I have downloaded the .iso. I guess my question is; How do I go about installing Ubuntu on my crashed computer from the external harddrive? I've used Ubuntu before, but I used to install it from a CD-rom. I tried reading the instructions, but couldn't really understand them. Please help  Edit: As Tom mentioned, I only want to install Ubuntu on the (formerly) Windows machine.  Anyways, thanks for the quick responses, I think I've got it from here. Cheers
71471
I just installed Ubuntu alongside Windows 7. Now I cant boot Windows 7 because it automaticaly boots Ubuntu without displaying boot menu. How can I get menu with options to choose which Os to boot? Can anyone help?
122067
I have dual booted Ubuntu with Windows 7. I wanted to uninstall Ubuntu. So as per an answer for one of the related questions on this site I did the following:   Deleted the Ubuntu Partition through Windows. As per the answer now I was supposed to boot Windows from USB &amp; then do "repair startup".   But Windows could not find any problem hence nothing was done. So when my laptop booted normally (i.e. from HDD) it was showing some error like GRUB:/ unknown file system. I dont remember the exact words but it was something like this. Thus I couldn't boot windows neither Ubuntu. So again I had to install Ubuntu.  But now my question is how do I remove Ubuntu so that my laptop returns to the previous state of installing Ubuntu?  UPDATE: Seems that it wasnt on this site. My mistake :P .Here is the link
41805
I want to dual boot windows 10 and ubuntu but I can't see the option to install alongside windows 10 during ubuntu installation. Yet ubuntu installer recognizes windows 10. My pc has 4 partitions. Please help
2179
I currently have Windows 7 on my computer and I want to install Ubuntu alongside Windows safely.  Could someone please provide clear instructions?
17707
I want to reinstall GRUB 2 and I found these instructions: . In my case, the boot loader is installed in the EFI partition. If I use the commands provided in this guide, will GRUB be reinstalled to the EFI partition automatically, or will it be installed into the root partition where Ubuntu is installed ? Obviously, I do not want this to happen.
81894
I have Ubuntu 15.10 and Windows 10 dual-booted, but I want to reinstall Ubuntu in the same partition without making any changes or causing problems in the dual boot option and without removing Windows.  Is it possible? Any guide on how to do it?
103589
I want to install Ubuntu and remove Windows 10 , but when you restart the PC does not read the Ubuntu installer that is on a bootable USB.
28771
How can I install Ubuntu on Windows 10 as dual boot? I have a DVD with Ubuntu and when I tried to install Ubuntu I had a warning that the hard disk will be erased. How can I install Ubuntu and keep my Windows 10? Thanks
39689
I have 2 partitions (Windows and Ubuntu 13.04) and I am asked which one to boot each time I turn on my computer.  I want to install Ubuntu 13.10 to the entire disk.  I do not mind if all previous Ubuntu/Win data are lost.  How can I do that?
797
I'm absolutely new to Linux. I would like to know how to install Ubuntu alongside the pre-installed Windows 8+ OS.  Should I do it with Wubi, or through the Live USB/DVD?  What steps do I need to take to correctly install Ubuntu?
32632
I installed Windows 8 and after that I installed Ubuntu. This are my partition now:   70Gb --> Windows 8 50Gb --> Ubuntu 12.10 100Mb --> UEFI 300Mb --> Recovery   I installed the GRUB on /dev/sda. Then, after GRUB not showing up and booting directly into Windows 8, I turned the laptop off and booted again into Ubuntu LiveCD and ran the Boot-repair utility, it give me  but it didn't solved the problem.  My Laptop still boots directly into Windows 8, without GRUB or Ubuntu even showing up.
111347
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?
79211
I installed windows 8.1 on my new laptop (which came with freedos), I later tried to dual boot the pc with ubuntu 14.04 (with legacy mode). I didn't get an option to install alongside windows 8 so I went with "something else" option. I created the root and swap partitions and then installed ubuntu. Everything went fine while installation. But after rebooting it directly boots into ubuntu, it does not show the GRUB menu for choosing between ubuntu and windows.   After using 'fixmbr' in the windows installation disc, I can now boot into windows but cannot boot to ubuntu. I deleted the linux partition and tried to the above again but I ended with the same problem.  So I was thinking if there was a solution like a command or something which could make GRUB identify the windows partition and give an option to boot to it.  (if it may help, my windows is installed in legacy mode(as in BIOS mode).. if I disable legacy mode the laptop does not boot into any os and it asks for an EFI file to boot from. Also my liveusb boots only through UEFI mode. When I boot it in normal/BIOS mode it shows a blinking '_' )  Please help guys.. I need both the OSes for my projects. And I need them fast.  Thanx in advance..
20408
I'm very new with Ubuntu and generally with linux. I saw ubuntu and it seems like this OS is really good and stable, and so I decided to install it alongside my windows 7 OS.  I have a few problems with the installation. Here is what I did:   I downloaded the 64bit version from Ubuntu official website, and burned it on a dvd. I set the boot sequence to first load from my CD-Rom. Ubuntu installation started, and I chose "Install Ubuntu" in the menu. (where there is also a "Try Ubuntu" option) I clicked forward until I got into the installation type screen    As you can see, the installation wont show my actual details about my hard drive! I have 1 hard drive with 750 GB - 80 GB - My main drive with windows 7 OS 600GB - All of my stuff 20GB Free space that I saved for Ubuntu But the installation wont show that!