Installing grub after instalation of Fedora29 (SOLVED)

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Hi,

I have 2 disk :

[jorge@fedora-29 ~]$ lsblk -f
NAME   FSTYPE    LABEL         UUID                                   MOUNTPOINT
sda                                                                   
├─sda1 ntfs      Återställning 1E9C94E29C94B62D                       
├─sda2 vfat                    5895-9BE4                              
├─sda3                                                                
└─sda4 ntfs                    2EDE9941DE99026F



sdb                                                                   
├─sdb1 vfat                    6946-F562                              /boot/efi
├─sdb2 ext4                    d8c4fd17-394f-475e-949b-d3c9f85623e9   /boot
└─sdb3 LVM2_memb               76h2QS-WX92-ONE3-8hgX-7G0Z-uXsQ-8BPN3R 
  ├─fedora-root
  │    ext4                    5f49e753-440a-4731-b16d-515f578f9969   /
  ├─fedora-swap
  │    swap                    f4a6d796-e1d4-4ed8-a674-2af9ac5aa2b6   [SWAP]
  └─fedora-home
       ext4                    9ce27f15-5033-4498-a8a0-952ad4355678   /home

I have windows (in sda with its efi loader into sda2) before I installed fedora i disconected disk sda becouse i didn't want have grub menu if not that i would select the OS from Bios. The problem is that every time I start an operating system, new repeated entries are generated that refer to the 2 hard disks. Which I have to manually delete because they become excessive. What would be the best solution to not have the problem that these repeated entries are generated automatically (I would like to be able to select the OS from the Bios but if there is no alternative I would have to install the grub inside dev / sdb1?) Which would be the procedure guide for do what?)

Thank you very much for any contribution.

Like this:

[jorge@fedora-29 ~]$ efibootmgr
BootCurrent: 0000
Timeout: 1 seconds
BootOrder: 0000,005C,0062,0063,0066,0067,0060,005E,005F,0061,0064,0065,0068
Boot0000* Fedora
Boot005C* UEFI: KINGSTON SA400S37240G
Boot005D* Samsung SSD 860 EVO 250GB
Boot005E* CD/DVD Drive 
Boot005F* UEFI: Built-in EFI Shell 
Boot0060* Hard Drive 
Boot0061  UEFI: KINGSTON SA400S37240G
Boot0062* UEFI: Samsung SSD 860 EVO 250GB
Boot0063* UEFI: KINGSTON SA400S37240G
Boot0064  UEFI: Samsung SSD 860 EVO 250GB
Boot0065  UEFI: KINGSTON SA400S37240G
Boot0066* UEFI: Samsung SSD 860 EVO 250GB
Boot0067* Windows Boot Manager
Boot0068  UEFI OS