How to make a Macbook not look for a USB flash drive at startup?

Question

Hard disks

I inserted a flash drive with Windows on my MacBook, Windows just lay there. I turned on the MacBook, there was a flash drive, there was very little brightness, but I saw the Windows installer, took out the flash drive, turned off the MacBook, turned it on, there was a question mark and a link support apple com / startup, something like this, I looked for how to solve, the MacBook turned on with macos, and there is again a question mark when turned on, I think that he is looking for a flash drive, or there is an efi efi partition, I don’t know what kind of partition it is, like it’s from installing Windows, I inserted the flash drive and canceled the Windows installation, well, in short, I don’t know what to do, it is necessary that he does not look for it, there is a Mac os disk in the boot disk, the flash drive is not inserted, but he is probably looking for it. Help urgently please

Answer 1

So what did the installer do? did he install the system? or what? Because if ALREADY then the disk is most likely erased
Yes, and in automatic mode, it doesn’t seem to start normally ...

Answer 2

https://support.apple.com/en-us/HT201255#:~:text=C... .
The wording of your question is just confusing.
As I understand it, your Windows bootloader messed up the
Command (⌘)-R: launch using the macOS recovery partition. To launch from the macOS recovery partition over the Internet, use the keyboard shortcut Option-Command-R or Shift-Option-Command-R. From the macOS Recovery partition, you can install different versions of macOS depending on the keyboard shortcut you use. If your Mac has a firmware password set, it will ask you to enter the password first.