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If it is enabled, it should be given a password, and User Cannot Change Password should be set if multiple users will log on with the account. The HelpAssistant account is on your system for use when the Remote Desktop Assistance functions are used. Built-in Local groups have assigned to them specific privileges also called user rights that enable them to perform specific sets of tasks on a system.
The default local group accounts on a Windows XP Professional system are the following:. Administrators—Users in this group have all built-in system privileges assigned. They can create and modify user and group accounts, manage security policies, create printers, and manage permissions to resources on the system.
The local Administrator account is the default member and cannot be removed. Other accounts can be added and removed. When a system joins a domain, the Domain Admins group is added to this group, but it can be removed. Backup Operators—Users in this group can back up and restore files and folders regardless of security permissions assigned to those resources.
They can log on and shut down a system, but cannot change security settings. Power Users—Users in this group can share resources and create user and group accounts. They cannot modify user accounts they did not create, nor can they modify the Administrators or Backup Operators groups.
They cannot take ownership of files, back up or restore directories, load or unload device drivers, or manage the security and auditing logs. They can run all Windows XP-compatible applications, as well as legacy applications, some of which members of the Users group cannot execute. If you want certain users to have broad system administration capabilities, but do not want them to be able to access all system resources, consider putting them in Backup Operators and Power Users rather than Administrators.
Users—Users in this group can log on, shut down a system, use local and network printers, create local groups, and manage the groups they create. They cannot create a local printer or share a folder. Some down-level applications do not run for members of the Users group because security settings are tighter for the Users group in Windows XP than in Windows NT 4. By default, all local user accounts you create are added to the Users group.
Guests—Users in this group have limited privileges but can log on to a system and shut it down. Members cannot make permanent changes to their desktop or profile. By default, the Built-in Local Guest account is a member. When a system joins a domain, the Domain Guests group is added to the Local Guests group. Network Configuration Operators—Users in this group have administrative privileges to manage the configuration of networking features.
Built-in System groups also exist, which you do not see in the user interface while managing other group accounts. Membership of system groups changes based on how the computer is accessed, not on who accesses the computer.
Built-in System groups include the following:. You use the Authenticated Users group rather than the Everyone group to assign privileges and group permissions, because doing so prevents anonymous access to resources. Creator Owner—Contains the user account that created or took ownership of a resource. If the user is a member of the Administrators group, the group is the owner of the resource. To create a local user or group account, right-click the appropriate folder Users or Groups and choose New User or New Group , enter the appropriate attributes, and then click Create.
Can be up to characters, although down-level operating systems such as Windows NT 4 and Windows 9x support only character passwords. Should be difficult to guess and, preferably, should mix uppercase and lowercase letters, numerals, and nonalphanumeric characters.
Can be set by the administrator who can then determine whether users must, can, or cannot change their password or the user if the administrator has not specified otherwise. The Password Never Expires option is helpful when a program or a service uses an account. To avoid having to reconfigure the service with a new password, you can set the service account to retain its password indefinitely. The information you can specify when creating an account is limited in Windows XP.
After the creation of a user, you can specify the groups the user belongs to and the profile settings for the user, as shown in Figure 3. Figure 3. To manage the membership of a Local group, right-click the group and choose Properties. To remove a member, select the account and click Remove.
To add a member, click Add and select or enter the name of the account, as shown in Figure 3. Universal groups and Domain Local groups are available to add as members only when the domain is in native mode, meaning that it can contain only Windows and Windows Server domain controllers—no Windows NT 4. To rename an account, right-click the account and choose Rename. Type the new name and press Enter.
Each user and group account is represented in the local security database by a long, unique string called a Security Identifier SID , which is generated when the account is created. The SID is assigned permissions and privileges. The user or group name is just a user-friendly interface name for humans to interact with the computer. Two situations mandate renaming an account. The first occurs when one user stops using a system and a new user requires the same access as the first.
Rather than creating a new local user account for the new user, rename the old user account. The administrator will need to change the reference in the user properties and within the directory structure where the folder resides. The second situation that warrants renaming a user account is the security practice of renaming the built-in Administrator and Guest accounts.
You cannot delete these accounts, nor can you remove the Administrator account from the Local Administrators group, so renaming the accounts is a recommended practice for hindering malicious access to a system. A Group Policy exists to modify the Administrator and Guest name and status enabled or disabled.
You can either create this at the local computer level or at the site, domain, or organizational unit OU level within Active Directory. To disable or enable a user account, open its Properties dialog box and select or clear the Account Is Disabled check box. If an account is disabled, a user cannot log on to the system using that account.
Only Administrators can enable the Guest account. You can delete a local user or group account but not built-in accounts such as Administrator, Guest, or Backup Operators by right-clicking the account and choosing Delete. When you delete a group, you delete the group account only, not the members of the group. A group is a membership list, not a container. When you delete an account, you are deleting its SID. Therefore, if you delete an account by accident and re-create the account, even with the same name, it will not have the same permissions, privileges, or group memberships.
You will have to re-create all those settings.
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