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I set up a dual boot of Ubuntu with my previous OS Windows 7. But since Ubuntu installation whenever I choose Windows 7 from the OS selection menu I only get a blank screen.
I tried "recommended repairs" in the boot repair tool but it's still showing that blank screen whenever I choose Windows 7. I also tried the
update-grub command from terminal but it's still the same. I installed Ubuntu on an unallocated space in my PC.