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i'm new to dual boot installation of Ubuntu and Windows 8.

I had first installed windows 8 and then install Ubuntu 12.04 and after completion reboot my PC.

I have configured dual boot with easyBCD for displaying dual boot os options in grub and it also displayed it but when i choose windows 8 it shows Error that "BOOTMGR is missing Press Ctrl+Alt+Delete to Restart" .

After that i used "boot-repair" tool but bad luck after using it , windows 8 option gone in grub (not displaying) that displayed before use of "boot-repair" tool.

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Output of :fdisk -l

Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00044284

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048   327682047   163840000    7  HPFS/NTFS/exFAT
/dev/sda2       327682048  1953523711   812920832   83  Linux

Disk /dev/sdb: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders, total 312581808 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0009d14e

   Device Boot      Start         End      Blocks   Id  System

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pls guys provide some solution.

share|improve this question
    
repair your windows bootloader and then ran boot-repair. –  Avinash Raj Dec 30 '13 at 15:06
    
see this askubuntu.com/a/381603/202806. –  Avinash Raj Dec 30 '13 at 15:09
    
thanks for answer.Means i don't have to format my PC and doesn't need to backup my data is that it? –  Deep Jan 2 at 7:46
    
yes,you are correct. –  Avinash Raj Jan 2 at 7:50

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