I try to install Ubuntu 12.04 in different partition. After completion of my Ubuntu installation. My laptop restart but I can't see any boot loader or start up choose what OS I want to choose(windows or Ubuntu) . After this I can't run my window 7 also, One blink \_ sign appears on my blank black screen. So what can I do for run windows or Ubuntu.

After this again I try to install complete Ubuntu via USB flash disk. but I have 400gb hard disk, in one drive `/dev/sda4/` but have 3 partition in window after Ubuntu installation c d e.

How to recover my windows7.