What should I do when I forget my previous password when installing postgre SQL.

Preface:

Yesterday, a new version of the postgre database program was installed, and the previous version was not deleted.

During installation, you are prompted to enter the postgre user name and password. (That is, the password set during the previous installation)

But I forgot!

Solution:

In the System user group, delete the postgre user.

Specific operations:

Open the control panel and Select User Account]

Open. There will be a postgre account here. Just delete it.

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Sometimes we cannot see this account in the user account

Use Net user
Command to check whether the user exists.

If yes, use
Net user Postgres/del command, you can also delete this user.