Super Grub(2) Disk Support Boards > Super Grub(2) Disk (English)

All attempts to uninstall grub fails (fixed)

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octopi:
Hello,

I have a laptop that had a dual-boot of Windows 7 and Ubuntu, with Ubuntu being the main booting OS (I could select the operating system to run at boot with grub). I recently deleted the Ubuntu partition thinking that would clear my installation entirely, but it didn't. Now, when I boot up my laptop, after showing the BIOs screen, the computer displays the "grub rescue>" prompt. I attempted to boot Windows 7 from the prompt, but it gave me an "Unknown command" when I tried to use the "boot" command.

My laptop has two partitions on the ~300 GB hard drive:

* "F: System Protected" - 100 MB, contains a BOOT folder and "System Information" folder, something like that
* "C:" - 86 GB, my Windows 7 partitionThe rest of the space on my hard drive is free space. One of the biggest mysteries of this whole conundrum is where the grub is actually located.

After a little Googling, I found Super Grub Disk, and tried multiple techniques to get Windows to boot up:

* "!WIN!" - Selecting this option only led me back to the main menu of UNetbootin
* "WIN => MBR & !WIN!" - Selecting this option displayed two lines of what appeared to be grub commands, and then my laptop shut itself off and rebooted
* "Language & HELP -> English Super Grub Disk -> Windows -> Fix Boot of Windows -> Syslinux -> hd1 86GB" Selecting this option displayed about 9 lines of commands/code (set out_device=(hd1)... set out_hd=hd1... back... dd (fd0)/boot/sgd/brs...), but did nothing more
I'm not sure what else I can do.

adrian15:

--- Quote from: octopi on 2012/05/01, 02:45:57 am ---Hello,

I have a laptop that had a dual-boot of Windows 7 and Ubuntu, with Ubuntu being the main booting OS (I could select the operating system to run at boot with grub). I recently deleted the Ubuntu partition thinking that would clear my installation entirely, but it didn't. Now, when I boot up my laptop, after showing the BIOs screen, the computer displays the "grub rescue>" prompt. I attempted to boot Windows 7 from the prompt, but it gave me an "Unknown command" when I tried to use the "boot" command.

--- End quote ---

I see you are using the old Super Grub Disk.

I recommend you to use the Boot & Tools menu where you will find the Boot Partition option. You might need to boot into the second or third partition. You might need to run EASY LIVE SWAP before it  so that it boots.

Once in Windows I recommend you to install EasyBCD and try to reinstall the boot stuff from there.

If none of this work try Super Grub2 Disk and its Detect any OS option so that it can hopefully detect your Windows installation and let you boot into it.

adrian15

octopi:
Adrian, you beautiful person. SGD2 with "Detect any OS" option worked like a charm, and Windows 7 opened up with no problems.  You've just saved me a crapload of time and effort to get Windows to work again, and your program worked so well, I just made a $5 donation to your website.

Thanks again for the program, and for being so helpful with your advice on this forum. You rock.

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