This contains my most used commands on new debian systems, so why not make it foolproof and create scripts for it?
Install your Debian system. If on Hyper-V, select the hyper-v network-driver. At the end continue with only the 'basic-system-tools'-package selected.
$ su root # if needed
$ apt install -y git
$ exit
$ git clone https://github.com/thetillhoff/baremetal-debian-scripts
$ cd baremetal-debian-scripts
$ su root
$ ./initial.sh
## reboot
$ cd baremetal-debian-scripts
$ ./install-xrdp.sh
$ sudo ./install-docker.sh
## reboot (or poweroff on Hyper-V)
If you're running on Hyper-V also make sure the last poweroff/reboot is a poweroff, then close the vmconnect-window and reboot/-connect anew. Otherwise the enhanced session won't be available. Don't forget to run Set-VM -VMName <your_vm_name> -EnhancedSessionTransportType HvSocket on your Hyper-V host.
systemctl reboot/poweroff
If you have an EFI-based BIOS, you can change the boot-settings from your OS.
To display the current state run efibootmgr.
To disable one of the entry run sudo efibootmgr -A -b 0008.
-A stands for disabling, while -a would stand for activating.
-b XXXX contains the ID of the bootdevice.