The following bug has been logged on the website:
Bug reference: 16138
Logged by: Abhilash Mishra
Email address: abhilash.mishra.10@gmail.com
PostgreSQL version: 12.1
Operating system: Windows
Description:
I'm trying to install postgres on my system (on windows 10 OS) but at the
end of the installation, I'm receiving the following error message "Problem
running post-install step. Installation may not complete correctly. The
database cluster initialisation failed."