Every semester, someone installs Kali as their main computer, daily-drives it for email and banking, and learns the hard way why that is a category error. Kali is a workshop full of specialised tools, not a house. Here is the honest case - and the handful of lab rules that keep your learning legal, safe and reversible.
Nothing on this page is here to slow you down. It is the same orientation a good mentor gives in the first hour, compressed: what Kali is for, how its user model actually works today, and the rules that separate a professional lab from a liability. Kali Linux is a professional security testing system. Use it only on computers and networks you own, or where you have clear written permission to test. That one rule is what separates a security professional from a criminal.
Old tutorials show Kali running entirely as root, and old advice says that is how Kali is. That was true of early versions. Since Kali 2020.1, the installer creates a standard non-root user - the account you made during this installation - and that is who you log in as.
Tools that genuinely need administrator rights ask through sudo, exactly like on Ubuntu. This model is safer (a typo or a buggy tool cannot silently take the whole system) and it matches how professional Linux work is done everywhere else. If a guide tells you to enable permanent root login for convenience, that guide is teaching you a bad habit - decline it.
It is not that Kali cannot browse or play media. It is that everything about it is tuned for a different job: a rolling release that updates aggressively (great for fresh tools, exciting for stability), a minimal interest in the polish and hardware quirks handling of a consumer system, and a large set of powerful network tools one mis-typed command away from doing something you did not intend on a network you do not own.
Use a normal system - Windows, Ubuntu, Mint - for daily life. Open the Kali VM when it is time to work in the lab. That separation is also what makes the lab disposable, and disposable is a feature.
This is the rule the whole profession stands on, so it gets its own card. You may test:
"The Wi-Fi was open", "the college never said no", and "I was only looking" are not authorisation. Unauthorised testing is a crime in most countries, including under India's IT Act, no matter how educational the intention. The video and these guides assume the first two categories, every time.
Keep testing traffic where it belongs: vulnerable practice targets on a host-only network, Kali itself on NAT for updates, and nothing pointed at the office, institute or a neighbour's network just to see what happens. Combine that with the snapshot habit - clean base, snapshot before experiments - and almost every beginner accident becomes either impossible or instantly reversible.
Also keep the VM's shared folders narrow and sensible. The lab should be able to pass you files; it should not have a standing open door into your entire personal drive.
The habit that turns a hobbyist into a hireable tester is not a tool - it is notes. Keep a simple lab journal: what you practised, against which of your own machines, what worked, what broke. Screenshots, dates, versions. It feels like overhead for the first week and like a superpower by the second month.
And when something confuses you, Kali's official documentation and forums are the first stop - the distribution is documented to a professional standard, and searching there before random video comments will save you hours.
Every screen of the Kali Linux VMware installation, shown live step by step.
Watch Full VideoNo. Kali is a legal, widely used professional distribution. The law cares about what you do with it: testing your own systems or systems you have written permission to test is legitimate work; testing anything else without permission is not.
Since version 2020.1, Kali creates a regular user during installation and uses sudo for administrative tasks. Running everything as root all the time was risky and unlike every other professional Linux workflow, so the project changed it.
You can, but you should not. It is a specialised, fast-moving testing platform. A normal desktop system for daily work plus Kali in a VM gives you stability, safety and a lab you can reset - all at once.