I can't install KDE to dual boot with windows 10

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From my recent experience with an Acer laptop with Windows 10, you might have to do the following to make it dual-boot in secure mode:

• Preparation for installation: Convince the machine to boot from the USB medium in UEFI secure mode first.

  • You'll have to enter the BIOS set-up (press F2 during power-on).
  • Set a master password. If you don't plan on keeping your machine locked with a BIOS password, you can use a one-letter password and reset it later.
  • Reboot, enter the BIOS again, look through the secure boot / UEFI options and find the one where you can add allowed partitions. Find the bootable Linux on the USB medium and add it.

• Boot from the USB drive. Install Fedora, use the settings for UEFI (can't remember whether I made it work with the automatic set-up or did a manual config). You'll want to end up with a GRUB config that contains your Windows boot loader as an option, too.

• When rebooting, enter the BIOS again and add the new partition that contains your Fedora's GRUB to the list of allowed partitions.

• Change the boot order so that your new Fedora GRUB is loaded first. You can then boot Windows from the GRUB menu.

Note: It's been a few months, I can't remember whether the first step (adding the USB medium first) is really necessary, but it's definitely necessary for the installed partition. Thanks for nothing, Acer.

The key mistake in your process is how you create the USB stick. You need to respect what you alreaady have installed, e.g.:

If you have Windows isntalled, and it is in UEFI mode, usually the disk partitioning is of type GPT (legacy usually comes with MBR disks). In this case, the USB with fedora needs to be of type UEFI/GPT. You can usually choose this at USB burning level, e.g. in windows the utility called Rufus, allows you to choose how you want to burn the USB drive.

The opposite story, if you have windows in Legacy mode, you need to burn the USB media in MBR legacy mode.

Then, install both following the same partitioning type and, if UEFI, share the UEFI partition so your new installation doesn't screw up the existing one.

PS. KDE doesn't have anything to do with any of this. Barely Fedora has anything to do at all. This is the same for any linux distribution, if not any operative system.

Good luck