create table permission denied in database 'master'

Question

I have installed the free version of sql server 2008 (sql server management studio express edition) on my PC. After installation I get the following error

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Answer 1

1. select USER_NAME() execute this query,if you find the username as guest then just close the sql server..

2.Then go to start menu right click the sql server icon and choose the option "Run as administrator"..Now you can create the database