Thread: BUG #2825: Installation doesnt let me create username

The following bug has been logged online:

Bug reference:      2825
Logged by:          Josh
Email address:      PenguinMasterXxX@hotmail.com
PostgreSQL version: 8.1
Operating system:   Windows XP
Description:        Installation doesnt let me create username
Details:

When i try to install a postgres as a service it tells me all the names i
try to use already exist. what do i do?