Tried dual boot with win 7 and ubuntu 14.04 and failed

Wolf of Mibu

Honorable
Jun 9, 2013
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Installed ubuntu 14.04 alongside win 7 with usb. My hard drive is been configured to,
Drive C: sda 01 (Win 7)
Drive E: sda 05
Drive F: sda 06
Drive G: sda 07(ubuntu 14.04)

In the boot menu it shows windows 7(sda 01). I have made win 7 to default using grub. But coudnt boot win 7. Help will be appreciated !!!