I tried to install postgresql 8.4 in my windows 7 (64 bit). But it fails with following messages in log
Initialising the database cluster (this may take a few min
There seem to be many reasons cause the installation fail.
In my case, I'm using Windows 10 home edition, which has no advance user group control, so a lot of solutions above doesn't work for me. And I guess this is why the installation fails.
What I do is just using BigSQL's installer instead of EnterpriceDB's installer,
Choose the second installer in posgresql download center
Or visit BigSQL directly.