Hi,
I use windows 10 and windows server 2012 R2 in Dual boot.
Now I Shrink Volume 97 GP "unallocated space" and I Install RHEL 7.7

But i can not find my Windows boot. I follow some configuration that bellow

This comment:

fdisk -l
blkid
vim /etc/grub.d/40_cusstom
menuentry “WindowsServer” {
insmod part_msdos
insmod ntfs
set root=’hd0,msdos1′
search –no-floppy –fs-uuid –set=root 98A427C2A427A1AC
chainloader +1
}
grub2-mkconfig -o /boot/grub2.cfg
Not working
Computer Information:

Bios Mode = UEFI
Company = dell
Configuration = corei3, 4GB Ram, 7 Generation
Partition = GPT

This is my Dell service tag : 8ckzw32 (you can check dell site)
It is better to see my laptop configuration.
Thanks
Ashraful