One of the accounts will be an "administrator" account which allows you do do anything/change anything. (Windows will make the first account you set up and admin account by defult). The other account probably wont be an admin account. Simply go to Start > Settings > Control Panel > User Accounts, then click on the name of the account who is a "Limited Account" (if you cant do it then try logging in as the other user), then click "change account type", then change it to "computer administrator". Now both accounts will have a same access to programs etc etc. Enjoy!