In this video you will learn how to update Kali Linux and install guest additions (which gives better integration between the host and virtual machine).
This video is taken from one of my full courses on ethical hacking, check out the following links for more info and to get massive discounts on them:


Learn Ethical Hacking / Penetration Testing From Scratch 
https://www.udemy.com/learn-ethical-hacking-from-scratch/?couponCode=YOUTUBE-G-49

Learn Website Hacking / Penetration Testing From Scrtach
https://www.udemy.com/learn-website-hacking-penetration-testing-from-scratch/?couponCode=YOUTUBE-W-49

Learn Network Hacking / Penetration Testing From Scratch 
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Learn Hacking / Penetration Testing Using Android
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Learn Wi-Fi Password Penetration Testing From Scratch
https://www.udemy.com/learn-cracking-wi-fi-passwordskeys-wepwpawpa2/?couponCode=YOUTUBE10


ARP Spoofing Attacks - Execution & Detection
https://www.udemy.com/learn-practical-attacks-against-network-clients/?couponCode=YOUTUBE9