Delete MBR and then fix it WITHOUT REPAIR DISC

ariankordi

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Jun 1, 2013
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Okay, so my MBR is screwed up. Windows now boots from my secondary disk which is ANNOYING! I want to delete the MBR on that disk, and on my primary disk the MBR was overwritten by GRUB4DOS and now I have to type 6 lines JUST TO BOOT INTO WINDOWS
And, if you're wondering, since Windows boots from my secondary disk
BOOTMGR IS MISSING
PRESS ALT+CTRL+DEL TO RESTART
And, if you ask me "UH HERP DERP USE THE INSTALL DISC" or "BURN A REPAIR DISC!" My DVD/CD drive does NOT WORK. (IDE controller failure) and I don't want to take out my SATA disc drive because I don't have any blank discs around the house AND My Dad is using it.
If there is NO WAY possible in the entire world to do this, you can either FORCE me to put the SATA drive in there, (which you will teach me not to be lazy) or you can send me your Windows files.
Thank you for listening.
 

c3h8

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Aug 8, 2008
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I. Use flash drives as storage mediums; they can be made bootable and are supported by most machines. http://www.pendrivelinux.com/ I would recommend starting off with Hiren’s BootCD being installed to your flashdrive (Backup your data before formatting…)

II. Configure your GRUB4DOS install correctly and you won’t have the excessive difficulty google search “chainloading windows from GRUB4DOS” the 3rd and 4th links to reboot.pro are my personal recommendations.

Booting windows 7 from Grub4dos http://reboot.pro/topic/9717-booting-windows-7-from-grub4dos/

How to use Grub4dos to boot Dos/ Windows XP http://reboot.pro/topic/14013-how-to-use-grub4dos-to-boot-dos-windows-xp/

III. IF you really just want to reset your MBR (and PBR) try BootICE http://www.softpedia.com/get/System/Boot-Manager-Disk/Bootice.shtml
 

ariankordi

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Jun 1, 2013
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I. I do not have a flash drive.

II. I honestly do not like to use GRUB4DOS, trying to remember those SAME EXACT 6 lines.

III. Thank you, I will try that later, since my brother is hogging my computer. By the way, if I format my secondary disk, will the MBR of that be gone?
 

c3h8

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Aug 8, 2008
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@ariankordi Typically no. Under most conditions formatting a drive will do nothing to the MBR- it has it's own private space before the partitions start. The exception is when you convert the entire drive (using a logical disk manager) from a bootable disk to a storage medium, but because of the implications of this change it will be explicit about making this change, if it does.
 

ariankordi

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Jun 1, 2013
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Okay, III worked. Now I can boot into Windows from my primary disk! Thank you!
 

c3h8

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Aug 8, 2008
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@ariankordi If you would go ahead and mark this forum as solved and mark a best answer. Below is an executive summary of the problem and resolution.

[Executive Summary]

Original Problem:
“Okay, so my MBR is screwed up. Windows now boots from my secondary disk which is ANNOYING! I want to delete the MBR on that disk, and on my primary disk the MBR was overwritten by GRUB4DOS”
“BOOTMGR IS MISSING”
“DVD/CD drive does NOT WORK. (Condition, not problem to be resolved)”

User chosen method of resolution (others were presented):
III. IF you really just want to reset your MBR (and PBR) try BootICE http://www.softpedia.com/get/System/Boot-Manager-Disk/Bootice.shtml

Additional Questions:
“By the way, if I format my secondary disk, will the MBR of that be gone?”

Additional Answers:
Typically no. Under most conditions formatting a drive will do nothing to the MBR- it has it's own private space before the partitions start. The exception is when you convert the entire drive (using a logical disk manager) from a bootable disk to a storage medium, but because of the implications of this change it will be explicit about making this change, if it does.