How To Restore Ubuntu After Reinstalling Windows

advanced options for boot-repair tool in Ubuntu
In a dual boot system with Windows and Ubuntu , it may happen that once Windows is reinstalled, the Ubuntu loader (Grub) which gives a choice to select between Ubuntu and Windows at startup will no longer be available and the system will directly boot to Windows. This is because Windows boot loader will replace Grub and so existing Ubuntu install will no longer be accessible. To restore Ubuntu, grub...