Follow the provided separate videos for installation of AutoCAD 2016 & AutoCAD 2021.
Before installation you need to switch off your internet connection & antivirus, otherwise it will not permanently crack. (ANTIVIRUS such as, WINDOWS DEFENDER, MCAFREE, QUICKHEAL, etc).
Also download WinRAR (zip file) from civilguruji’s course (link provided).
Download any one version, but first preference gives to latest version AutoCAD (light capacity & more advance features), if any problem arises with the configuration, then first uninstall AutoCAD 2021, then install AutoCAD 2016.
STEP1:- Switch off internet connection & antivirus if any, (by default you must have windows defender antivirus, make sure to switch off.
(NOTE- YOU HAVE TO DOWNLOAD WINRAR ACCORDING TO YOUR OPRATING SYSTEM TYPE).
Click on yes.