The grub2 used to work just fine with a purple screen pause and used to load Windows and Ubuntu as required. I used to run both OS on the same machine and both used to work just fine, but now when I try to launch Windows, it takes forever at the purple screen pause and it doesn't proceed further.
What caused this problem? What is the solution?
I used to run Windows 7 Ultimate and 14.01 Ubuntu side by side.