Using a strong password is among the most important steps you can take to protect your computer from hackers and other unwelcome users.
If you are logged on as an administrator, you can create a password for any account.
If you are connected to a domain, Group Policy settings might prevent you from completing these steps.
The steps that you should follow will vary, depending on whether your computer is on a domain or a workgroup. To find out, see "To check if your computer is on a workgroup or domain" in How is a network at home different from one at work?
A collection of computers on a network that share a common database and security policy. A domain is administered as a unit with common rules and procedures, and each domain has a unique name.
Strong password
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Strong password
A password that cannot be easily guessed or cracked. A strong password is at least six characters long, does not contain all or part of the user's account name, and contains at least three of the four following categories of characters: uppercase characters, lowercase characters, numbers, and symbols found on the keyboard (such as !, @, #).