AutoCAD 2020 installation failed (error code: 1603) This solution works for all Autodesk products

Solutions found on the official website:

To handle this error message, perform the following steps :
. Find this folder C\Program Files (x86)\Common Files\Autodesk Shared\ adsklicense
2. Run uninstall.exe as an administrator (right-click > Run as administrator) delete software.
3. Then restart the installation.
if the problem persists, try the following method :
1. Open the command prompt as an administrator (i.e., cmd-right-click the first result and click run as an administrator)
2. Enter and run the following command, then press enter. A message is displayed declaring that the service is started.
“C:\Program Files (x86)\Common Files\Autodesk Shared\AdskLicensing\Current\AdskLicensingService\AdskLicensingService. Exe “
(find AdskLicensingService. Exe right click on AdskLicensingService as administrator, do not close the window, reinstall the CAD)
3. Try the installation again and the installation is successful.