after installation password help

hi, i have finished the installation on windows server 2012, IIS 8 and sql server express. The installation went fine. but now i try to log in and it says the credentials are wrong? they are exactly what i entered on the installation screen. Is there a way to reset the password?

just to add to this, the log file is showing an incorrect timestamp. my php.ini timezone is correct. the server time is correct. i chose the correct timezone during installtion. is there anywhere to change that?

Ok sorted the timezone. Set a path for sessions in the PHP.ini file. still no luck.