Another way you can secure your computer is to configure an account lockout policy. This eliminates the possibility of someone sitting down at your computer and continuously attempting to guess your user name and password.

An account lockout policy will do just that: lockout an account after a certain number of failed logon attempts. So if a user is trying to guess your password, the user account will be locked out for a certain amount of time after they have reached the number of allowed failed logon attempts (configured by you).

You can enable an account lockout policy using the following steps:

1. Open the local security policy (Control Panel | Administrative Tools| Local Security Policy).
2. Expand Computer Configuration | Windows Settings | Account Policies.
3. Click Account Lockout Policy.
4. In the Details pane, double click Account lockout threshold.
5. Increase the value to the number of failed logon attempts you want to allow.
6. Click OK.
7. The Suggested Value Changes dialog box will appear. Click OK to accept the default values.