How to put Linux next to Windows 10 so that there is no system choice?

Question

linux

There is a separate empty SSD. I want to put Kubuntu on it. The problem is that I do not want the system loader to appear with the window select the system. I rarely use Linux (I just need it remotely now).
How to install so that Windows and BIOS do not see Linux, and I can load it stupidly through the Boot menu (F11), choosing the desired start disk?

Answer 1

1. Disconnect the main drive from Windows physically
   
2. Install Kubuntu
   
3. Plug disk back
   

Answer 2

If it's UEFI, then just leave the boot-list with a small hand, I think.
I mean the disc with it...

Answer 3

1. Put Linux on a separate hard drive, physically disconnecting the drive with Windows. Switch bootable hard in bios.
2. Do not disable anything, but at the stage of installing the bootloader, install it on a disk with Linux. We get the same as in the first option, but with the risk of missing and putting the bootloader on the wrong disk.
3. Install Linux on a flash drive.
Points 1-3 are easy to use and, if necessary, demolished everything and forgot.
4. Install Linux normally, and in the bootloader (fix the config after installation) specify that the menu is displayed for 0 seconds. This item promises a slight hemorrhoid if you are a novice user.
Your final tasks for which you need Linux are not known, but options are still possible:
5. Install linux in a virtual machine, set up a network and shared folders or devices.
6. If you have win10, then you can use wsl.
I use virtual machines and always have a flash drive with a light distro like puppy or elive.