You can also go into the pg_hba.conf file, and at the bottom put a # sign in front of host and then instead of the method set to 'md5', put 'trust'. This will allow you to login without a password, and then you can reset it. -----Original Message----- From: Scott Marlowe [mailto:scott.marlowe@xxxxxxxxx] Sent: Friday, May 16, 2008 12:02 PM To: LaRue, Patricia Cc: pgsql-admin@xxxxxxxxxxxxxx Subject: Re: Can't reinstall b/c don't know the very long installation password On Fri, May 16, 2008 at 8:41 AM, LaRue, Patricia <Patricia.LaRue@xxxxxxxxxxx> wrote: > Experts: > > > > I installed PostgreSQL and created the initial "very long" password and > wrote it down. Someone else did something to change it and now neither one > of us can log into the DB. So I tried to uninstall and reinstall but my > "very long" password is not recognized and without it I cannot complete the > installation. I even tried removing all PostgreSQL stuff from the registry. > Does anyone know how I can blow away wherever that password is located and > start fresh? Two ways to do this. 1: log in in single user mode. To do so, shut down the db, then use the postgres command to bring up the db in single user mode, like so: postgres -D /my/data/dir --single and then issue the command to change the password. OR 2: change pg_hba.conf to trust on some known IP, hup the server (pg_ctl -D /my/data/dir reload) and then log in as postgres and change your password.