1. download and install microsoft visual c++ 2019 (it is necessary for install virtual box)
   
2. download and install virtual box
3. download Image (file UBUNTU.vdi) with virtual ubuntu (for example into folder C:\VIRTUAL)
4. run VirtualBOX and click on „Computer“ and select „New“ as „Name“ fill UBUNTU
   
5. click on „Next“ and set a properties of new virtual machine
   
6. select „Use an Existing Virtual Hard Disc file“ and click on Yellow icon on right side
   
7. in next window click on , select file c:\VIRTUAL\UBUNTU.vdi and click on button “Choose”
8. click on “Next” and “Finish”. Now you can see a new virtual machine “UBUNTU” – you can run this machine by doubleclick on it.
   
9. in this virtual machine is user ubuntu with password 1+2+3+4+5 after login you can switch it to fullscreen mode by keyboard shortcut RightCTRL+F