[Help] restore grub after installing window7 64bit

[kaga01k]

Pls help me! I will restore grub after installing window7
I use liveCD fedora and type fdisk -l in terminal ->

[root@localhost liveuser]# fdisk -l

Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 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: 0xc30ebff0

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *          63   104872319    52436128+   7  HPFS/NTFS/exFAT
/dev/sda2       104872381   976768064   435947842    f  W95 Ext'd (LBA)
/dev/sda5       104872383   241591132    68359375    7  HPFS/NTFS/exFAT
/dev/sda6       241594368   292794367    25600000   83  Linux
/dev/sda7       292796416   360722431    33963008   83  Linux

Disk /dev/mapper/live-rw: 4294 MB, 4294967296 bytes
255 heads, 63 sectors/track, 522 cylinders, total 8388608 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: 0x00000000

Disk /dev/mapper/live-rw doesn't contain a valid partition table

Disk /dev/mapper/live-osimg-min: 4294 MB, 4294967296 bytes
255 heads, 63 sectors/track, 522 cylinders, total 8388608 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: 0x00000000

Disk /dev/mapper/live-osimg-min doesn't contain a valid partition table