If we install ubuntu while there is windows installed in our computer the MBR(Master Boot Record) of Windows’ will be ovewritten by the Ubuntu’s boot menu.
To restore the Windows MBR or boot menu we need to downlad EasyBCD. EasyBCD Backup/Repair utilities that provide users with the possibility to reset the BCD configuration or recreate and repair boot files. We can also customize the PC’s boot menu. We use EasyBCD to override GRUB bootloader.
Download EasyBCD : Download . Then install the downloaded file according to the screenshots.
Click ‘Edit Boot Menu’ and click ‘Save Settings
Then click BCD Deployment. Then click ‘Install BCD’ and click ‘Write MBR’.