If you are seeing a error on your desktop bottom right corner saying “The copy of Windows is not genuine” then that means either you are using the OS

Source: How to fix Window is Not Genuine error | Tech & Filmmaking

This is a good list of software to practice Hacking with

https://www.dionach.com/blog/review-of-purposefully-vulnerable-applications-to-practice-hacking

When you go to a site that shows a password field, have you ever wondered what was behind those stars?  Instead of viewing source and finding that spot in the code you can easily run this piece of javascript in the url bar of Chrome and Firefox

javascript: var oInputs = new Array();oInputs = document.getElementsByTagName( ‘input’ );for ( i = 0; i < oInputs.length; i++ ){     if ( oInputs[i].type == ‘password’ )    { oInputs[i].type =’text’; }}alert(‘done’);

Just make sure the javascript word is there (chrome seems to automatically remove it).  When you run this it will change the password fields to clear text and then notify you that it finished.