I installed ubuntu 12.04 (in Window 7 machine) and it was working properly. I recently did try to install Picture editor sw, before it finished it asked to ["recovering something"...I cannot recall..Or "Cancel"] And I Clicked "Recovering..." instead of "Cancel". Then the screen becomes blank with a cursor blinking on it.And now it won't complete the boot-up process, the screen keep on being blank with a cursor blinking on it.. What is the problem?
On the other hand, Windows 7 is working properly