Getting an error by making VBox full screen on Windows?

Despite installation of the package, getting same error again.

Error : kernel module failed
Kernel headers not found for target kernel4.19.0-8-amd64. Please install them and execute

Host: Win 10

VBox: Debian 10

Answer

This is typical issue, actually not an issue simply missing headers. Run following commands

$ sudo apt install linux-headers-4.19.0-8-amd64 
$ sudo apt install dkms

Then run guest script again

sudo sh VBoxLinuxAdditions.run

Finally reboot the machine

$ sudo reboot