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I have installed PostgreSQL on my Windows machine for development. Now I haven't used it for a while, and have forgotten the password for user postgres (default admin user in PostgreSQL). How can I reset the password for postgres in PostgreSQL on Windows?

I followed Milen's suggestion, but got this message when trying to reload the configuration file:

C:\Program Files\PostgreSQL\9.1\data>pg_ctl reload -D .
pg_ctl: could not send reload signal (PID: 3396): Operation not permitted

In Windows there is a menu option "Reload Configuration" that worked better, as shown below:

enter image description here

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There are suposed to be some free programs that may help, but had not try one. You may want to Google around for one or check here: http://www.ilikemall.com/guide/reset-windows-7-password.html –  frizz Gee Jan 14 '13 at 13:12
Hi frizz, thanks for answering, but I think you've missed the point of the question here: it is specifically the postgres password, not a Windows password that needs to be reset :) –  Jack Douglas Jan 14 '13 at 14:00

1 Answer 1

up vote 9 down vote accepted

I lost the database password. What can I do to recover it?:

I lost the database password. What can I do to recover it?

You can't. However, you can reset it to something else. To do this, you

  1. Edit pg_hba.conf to allow trust authorization temporarily
  2. Reload the config file (pg_ctl reload)
  3. Connect and issue ALTER ROLE / PASSWORD to set the new password
  4. Edit pg_hba.conf again and restore the previous settings
  5. Reload the config file again
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Link-only answers are not helpful. Please summarize the content of the link and add some context. –  JNK Jun 21 '12 at 13:58
@Jonas It may have reverted when I deleted the undeleted the answer...sorry! –  JNK Jun 21 '12 at 14:01
@JNK: Ok, I added it again now. –  Jonas Jun 22 '12 at 7:44
Why have you rolled back the edits? –  dezso Sep 26 '13 at 14:07
Can you explain Reload the config file (pg_ctl reload)? How do you do that? –  Imray Aug 25 '14 at 2:22

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