How To recover & repair Linux Ubuntu bootloader & Grub

Hi, In this Tutorial I am going to show How to recover and repair Linux Ubuntu bootloader and Grub menu if you lost it specially when you install windows xp/vista/7/8/10 after Ubuntu.
Links and Command:
1-How to Format usb flash after using win32disk imager :
2- Shut down command :
* shutdown /s /t 0
3-ubuntu Terminal commands:
* sudo add-apt-repository ppa:yannubuntu/boot-repair && sudo apt-get update
* sudo apt-get install -y boot-repair && boot-repair

Otaku,Cats lover and of course the founder of "When life gets hard.. just Watercool and OVERCLOCK !"