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Windows is not seen from GRUB2 after Ubuntu installed. I have used boot-repair to fix it , Grub can only see Ubuntu. If I restore the MBR, windows boot automatically. Is there any way to let Grub display windows7? Here is my boot information:

http://paste.ubuntu.com/6031212/

When I run

sudo fdisk -l

Disk /dev/sda: 750.2 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 cylinders, total 1465149168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x69aca7e3

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1              63       80324       40131   de  Dell Utility
Partition 1 does not start on physical sector boundary.
/dev/sda2   *       81920    19419135     9668608    7  HPFS/NTFS/exFAT
/dev/sda3        19421182  1278974027   629776423    f  W95 Ext'd (LBA)
Partition 3 does not start on physical sector boundary.
/dev/sda4      1278982845  1465140549    93078852+   7  HPFS/NTFS/exFAT
Partition 4 does not start on physical sector boundary.
/dev/sda5        19421184   272967679   126773248    7  HPFS/NTFS/exFAT
/dev/sda6       272969728   964309074   345669673+   7  HPFS/NTFS/exFAT
/dev/sda7      1069281368  1278974027   104846330    7  HPFS/NTFS/exFAT
/dev/sda8       964311040  1067824711    51756836   83  Linux
/dev/sda9      1067827200  1069271039      721920   82  Linux swap / Solaris

Partition table entries are not in disk order

Disk /dev/sdb: 32.0 GB, 32017047552 bytes
255 heads, 63 sectors/track, 3892 cylinders, total 62533296 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: 0xba000000
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