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.
Did you remove windows, or did you recently install updates? If so, you might just need to update the bootloader. Run this at the command line (assuming your GRUB install is in /boot/grub/):
sudo grub-mkconfig -o /boot/grub/grub.cfg
If your grub install is somewhere else, try reinstalling GRUB:
sudo grub-install /dev/sda
(assuming your computer boots to /dev/sda first)
That should solve the issue. If not, then your Windows install may be corrupt. If this doesn't fix it, use your computer's BIOS menu to boot manually on the Windows partition. If it doesn't boot, then your Windows install died.
