Run Setup/AutoCAD ~~.exe
Select Detailed Install

Install

ignore warnings - just enter
Replace crack
- C:\Program Files\Autodesk\AutoCAD 2021

Disable Statistics (optional)

DESKTOPANALYTICS CommandHow to enable or disable the Desktop Analytics Program in AutoCAD
How to enable or disable the Desktop Analytics Program (DAP) in AutoCAD. To enable or disable the Desktop Analytics Program: Under the Help drop down arrow, select Desktop Analytics (or type DESKTOPANALYTICS on the command line). In the Data Collection and Use dialog window, enable or disable the checkbox to indicate whether you want to be involved with the program.
https://knowledge.autodesk.com/support/autocad/learn-explore/caas/sfdcarticles/sfdcarticles/How-to-enable-or-disable-the-Desktop-Analytics-Program-in-AutoCAD.html
