The operating system is windows 10, 1903 version, 18362.295 os build. Sorry for the missing information 😊
The suggested command resulted in ‘Access is denied’. It seems that the folder postgresql_installer_3011282188and the other folders postgresql_installer_{string} are not owned by the current os user via which the installation has been started.
I changed the temp location to custom folder but the result is the same.
There is no any problems with the 11.4.3 installation assembly.
What's your Windows version? Will investigate the issue and get back to you. Could you run the following command as an Administrator and paste the output?
Can you also please try setting the TEMP variable to some other temporary directory and rerun the installer? So on the command prompt, you may do this:
C:\> set TEMP=C:\MyCustomTemp (Please create this directory if it doesn't exist)