The Guest account is for computer users who need to log on to search the net, check email, quick document processing…etc. If you want to make your computer more security, you need to change the Guest account name. Actually it is disabled by default. Now I will show you how to rename the Guest account in your Windows 7 machine.
Change Guest Account Name
On the first step, go into Control Panel and click on “Administrative Tools”.
In the Administrative Tools window, click on “Local Security Policy”.
Under Local Security Policy window, go to Security Settings \ Local Policies \ Security Options. Select “Accounts: Rename guest account” under Policy on the left side.
Now you can type in the name to whatever you want. Just make sure it is something different than other user accounts so you remember it’s the Guest account. When you’re done, just click “Apply” and “Ok” to finish your configuration.
Now when you go look at your User Accounts, you will find the name of the Guest account has been changed.
The simple trick helps you prevent unauthorized access of your machine. Is it too easy for you? Just have a try if you need!