I did too, I had installed with 2 drives, Windows first, then Kinoite, but the problem was that Windows automatically put its bootloader on drive 1 even if the OS was installed to drive 2, so when I installed Kinoite on disk 1, it naturally wiped everything that was on there.
My stupid easy solution was to reinstall Windows on drive 2 again, but with drive 1 disconnected from the PC at installation time, so it couldn't mess up, other answers here might be more refined (no pun intended) though, if you prefer/need to salvage the Windows system and can't just delete it.
Mine actually wasn't that easy either, because the drive was ButLocker encrypted, so before I could proceed to destroy everything, to save my files, I also needed to boot from Linux, mount the drive, decrypt with the BitLocker key and copy over the files to drive 2

Given that you installed Linux on a separate drive, it's likely that the Windows bootloader is perfectly fine but your BIOS chooses to prioritize the Linux disk. I would check if you can still select the Windows drive / installation in the BIOS / boot media selection.

Typically, Fedora should also add the Windows installation to its bootloader (https://docs.fedoraproject.org/en-US/quick-docs/grub2-bootloader/#_adding_other_operating_systems_to_the_grub2_menu). It uses os-prober to find other operating systems. Can you post the output of sudo os-prober?

Edit: The output of lsblk -f would also be useful (though you may want to anonymize it first).

If it is a second hard drive... Probably the win bootloader is on the first still? Check bios boot options

Maybe its destiny telling you you can do it without windows

It's usually the opposite...

Turnabout's fair play.

Windows install will have a back up bootloader that you can copy over or you can use the install media

I’ll give the install media instructions, you can do it from your Linux install if it’s able to see the Windows files

Launch Command Prompt with Shift+F10

List Disks with

list disk

Select desired disk with

sel disk #

Create the boot partition

create partition efi size=100

Select Boot

sel partition 1

Format Boot

format fs=FAT32 quick

Assign Boot partition

assign letter=g:

Copy the boot files to the partition

bcdboot c:\Windows /s G: /f ALL

I had the exact same problem with regular Fedora KDE. In my case it turned out that it didn't wipe out the entire Microsoft bootloader because there was a backup bootx64.efi. In the end I downloaded a windows installer iso, copied the boot* files and directory to efi/Microsoft/boot and copied that bootx64.efi and added it to the grub menu using the 40_custom file in grub.d and applied grub2-mkconfig -o /boot/grub2/grub.cfg

To boot from grub you use set root and chainloader /... which you then write as a menuentry

Sorry for the bad reply but I'm working

VENGANZA!!!

You can also install ReFind and it'll find all bootable partitions when it boots next time, but it'll probably look a lot messier than Grub until you figure out how to mask the extra entries you'll get for the Fedora stuff.

Which index were these disks arranged in? Windows will install its bootloader on 0 regardless of where you physically install the OS.

I like to keep OS disks self contained, and tend to completely remove other connected disks when conducting a new install. This is a must for Windows, I've not had a Linux distro place it's bootloader in anything other than the OS destination.