This is part of the log. I dont see any other errors in the logs. The only odd thing that i see is that this happens during the database installation and in the background i see 4 instances of PostGRES running.
Also, I have checked for spaces in the installation directory, firewalls removed for the ports specified. Nothing worked.
Path has also been set and retried but still no luck. Please do let me know if you have any more thoughts or if possible send screenshots of what needs to be done as a step by step process in case I am missing something.
I faced the same issue, it is happening because of the anti virus or firewall you installed. It is blocking the "pg_restore" file, so please try to install after deactivating the anti virus software and turning off the firewall. It worked for me.
Note : Extract the downloaded Pega personal edition Zip file again and try install from that.