我多次try 安装PostgreSQL 9.4和8.4，但无论我try 了什么，都失败了.我正在try 在Windows 7 SP1 x64上安装.每次安装失败后，我都会卸载并删除安装文件夹，重新开始安装.
每次try 安装时，我都会在安装结束时弹出一个错误，上面写着:
然后，另一个错误弹出窗口随即显示:
我已try 通过以下操作进行安装:
上面的所有操作都没有帮助，我总是收到错误.如果有人能提供任何帮助，我们将不胜感激！
我在try 安装PostgreSQL v9时遇到了同样的错误.Windows 10 Pro上的4.4.从a solution hosted on Stack Exchange开始，我想出了以下步骤，使安装程序能够成功运行:
1) Create a new user account, called postgres
2) Add the new account to the Administrators and Power Users groups
3) Restart the computer
NOTE: I added step #3, since step #4 didn't work without it
4) Run a command prompt as the postgres user, using the command:
runas /user:postgres cmd.exe
5) Run the installer from the postgres command window
6) Delete the postgres user account, as well as the user directory
NOTE: I added step #6, since the postgres account is not required after installation