After CentOS is installed, add the Windows boot item to grub2.

After CentOS is installed, add the Windows boot item to grub2.

Recover Windows boot after CentOS 7 Installation

According to the practices in the website/Boot/grub2/grub. cfgAfter the following content is added to the file, you can see the Windows boot item after restart and enter the win10 system smoothly.

### BEGIN/etc/grub. d/30_os-prober ### menuentry 'windows 10 (loader) (on/dev/sda1) '-- class windows -- class OS $ menuentry_id_option' osprober-chain-140E68540E6830C2 '{insmod part_msdos insmod ntfs set root = 'hd0, msdos1' chainloader + 1 }### END/etc/grub. d/30_os-prober ###

Note that,Set root =It is followed by the partition where the Windows System Boot is located, that is, the Windows system disk, which is generally a drive C.Hd0It refers to the first hard disk.Msdos1It refers to the first partition.