cant see Windows 10 on grub screen at the beginning.

[Cagatay]

BOOT centos

Yes, same as in viewtopic.php?f=47&t=64199 . The UEFI boot entry is there but no folder called /boot/efi/EFI/Microsoft containing the MS-Windows EFI boot loader, so you have accidentally advised the CentOS installer to re-format the EFI System Partition (ESP).

Restoring the MS-Windows boot loader should help.

BTW: Since this seems to happen quite often to people I would recommend a change in Anaconda: If a user ticks "[ ] format" on /boot/efi, it should raise a warning message that this is usually not necessary and especially will wipe out other, already existing EFI boot loaders.

I understand the solution but I think my problem is different, I just realized that my whole Windows 10 and Recovery files are deleted. I may post another topic, thank you for your help.

[Cagatay]

Okay thank you