In the future post in the HM Support thread in commercial software sub forum -
https://forumserver.twoplustwo.com/4...m2-pt4-772011/
Try installing PostgreSQL from this link -*
http://www.holdemmanager.com/downloads/postgres84
Then install HM2 again from the same file you already downloaded and it should install without issue.* Once installed you will probably get prompted for a beta update.* If you have any problems auto updating open your Windows Task Manager to the Processes tab and right-click - 'End Task' on the Holdem Manager process and click the 'Retry' button on the installer prompt.