I lost windows 7 after installing grub-customizer

Question

I did this thing and win 7 is gone. Please help me to get me that back. It is important as lots of my work files are not opening.

sudo add-apt-repository ppa:danielrichter2007/grub-customizer sudo apt-get update sudo apt-get install grub-customizer

Answer 1

You could try this way Dual boot: how to target the new grub but you may need to Reinstall GRUB instead of Restore MBR.