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Some time ago I installed Ubuntu (14th version) on my laptop along with Windows 8.1 using a bootable CD drive. But now I wanted to remove Ubuntu and so I deleted the partitions that I created for Ubuntu. Now I have to repair Windows boot but I do not have that CD drive from which I installed Ubuntu. Is there any way to repair the boot without original installation drive? Can I create another bootable drive and repair Windows boot from that.

P.S. - The Ubuntu installation process didn't go well. After I installed it alongside windows, whenever I used to start the laptop, I would get a grub screen and I have to type exit in order to go to the screen where it shows the OS choices. There were sometimes mounting problems in Ubuntu.

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If you don't have Windows installation DVD available, you can download it from here:

https://www.microsoft.com/en-us/software-download/home

After creating media using the tool downloaded from above, boot from DVD or USB and follow the instructions found here:

http://www.techspot.com/guides/630-windows-8-boot-fix/

Here's quick summary:

  • Select Repair your computer in the bottom left corner.
  • Select Troubleshoot
  • Select Advanced
  • Select Automatic Repair and try to boot normally without DVD/USB connected.

If Automatic Repair didn't help:

  • Go to same place as before but select Command Prompt
  • And use the following command: bootrec /fixmbr
  • Boot without DVD/USB
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This Ask Ubuntu question describes a similar situation and has an accepted answer that may solve the problem - How to load Windows 7 from GRUB rescue. Basically it uses the Ultimate Boot CD to enable running the boot recovery commands.

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If you have a Windows installation DVD or repair CD, you can boot to a repair command prompt (shift + f10 at the first screen) and run:

bootrec /fixmbr

If not, you can always create a bootable windows USB and install a bootloader like GRUB from there.

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  • OP asked a solution without using the 'original installation drive'.
    – Ob1lan
    Sep 30 '16 at 9:12

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