I realized the Boot0000 is a Windows boot manager, but I deleted Windows from my laptop just after buying it.
Everything works, because, as you can see, the BootCurrent is 0001, so Fedora, but my question is: can I delete Bot0000 item without problems? Is there any kind of (bad) effect on my laptop?
Last point: I will install fedora 36, when available, so I can “clean up” my boot list at that time, if safer.
Okey same as mine i also done that same thing bought laptop with windows 10 updated to 11 and asked for login with microsoft account then i remove 11.
I have done that and i am on f35 right now. And you can easily do that delete that partition. No issues after that just update the grub. With grub2mkconfg https://fedoraproject.org/wiki/GRUB_2#Create_a_GRUB_2_configuration
That is all you are all okey. Now if you are looking for encrypting the boot drive then you can reinstall fedora 36 once stable in 2week maybe else you can easily switch to fedora 36 with system upgrade.
Btw in most laptops there are 2 hidden partition (for back up of the windows and system)of 15 gb or so if you don’t want to return back to Windows ever you can delete them to fee that storage so you can use it in other space.
One other bit when cleaning up from a prior windows install on a system that boots uefi.
If you look you will see a directory /boot/efi/EFI/Microsoft which contains the windows boot loader info. Removing that directory after windows has been removed will prevent grub from configuring an entry for booting windows.
The previously mentioned hidden partitions are usually partitions 2 & 4 on the windows drive and since windows is no longer installed they can be removed. To identify the microsoft partitions that may remain on your machine use sudo fdisk -l