I had the same issue installing 9.1.4 on Windows 7. I managed to find a solution online that worked.
The steps I followed are:
- Uninstall PostgreSQL
Delete the postgres user if it still exists.
net user postgres /delete
Create the postgres user with a password you can remember
net user /add postgres <password>
Add the postgres user to the Administrators group
net localgroup administrators postgres /add
Add the postgres user to the Power Users group
net localgroup "power users" postgres /add
Run a command window as the postgres user
runas /user:postgres cmd.exe
Run the install file from within the command window.
C:Downloadpostgresql-9.1.4-1-windows.exe
This should run the installation successfully.
Remove the postgres user from the Administrators group.
net localgroup administrators postgres /delete
源链接:https://dba.stackexchange.com/questions/10241/postgresql-the-database-cluster-initialization-failed