I recently have deleted Ubuntu now whenever I boot the grub line command appears, I was able to boot into windows using the following commands
insmod part_gpt
insmod chain
set root=(hd0,gpt1)
chainloader /EFI/Microsoft/Boot/bootmgfw.efi
boot
The problem is I have to do this each time I boot
I tried messing with the diskpart tho wasn't able to fully manage and solve it due to my lack of knowledge of it