Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
The Ubundu screen resolution 640*480 and not able to chnage.
I installed the virtual machine in windows 10
You need to install Guest additions display Driver
open up a terminal and type in
sudo apt-get install virtualbox-guest-dkms
and then reboot.