Overview:

During the PostgreSQL installation process, it states the Account Name is invalid. Now the PostgreSQL can not be installed.

Note:  This generally only happens during a 2nd installation of PostgreSQL.

Run the attached .bat file and continue the installation.  .Bat File

OR

Simply change the Account Name to something else:

Maybe:  postgres1

Warning!!!  Do not change the "Account Domain" under any circumstances.

On later versions of PostgreSQL, it is necessary enter an Account Password to continue the PostgreSQL installation process.