BUG #10623: Installation failure

The following bug has been logged on the website:

Bug reference:      10623
Logged by:          Vince Kavanagh
Email address:      vince.kavanagh@gmail.com
PostgreSQL version: 9.3.4
Operating system:   Windows 7
Description:

Installation completed successfully with error message: "Failed to
initialise the database cluster"

install-postgresql.log
**********************
initializing pg_authid ... ok
setting password ... FATAL:  invalid byte sequence for encoding "UTF8":
0xa3
child process exited with exit code 1
initdb: removing contents of data directory "C:/Program
Files/PostgreSQL/9.3/data"

Called Die(Failed to initialise the database cluster with initdb)...
Failed to initialise the database cluster with initdb

FIX
***
Remove _?£& characters from installation password. Subsequent installation
succeeded.