Super-user - Windows NT

Windows NT

In Windows NT and later systems derived from it (such as Windows 2000, Windows XP, Windows Server 2003, and Windows Vista/7), there must be at least one administrator account (Windows XP and earlier) or one able to elevate privileges to superuser (Windows Vista/7 via User Account Control). In Windows XP and earlier systems, there is a built-in administrator account that remains hidden when a user administrator-equivalent account exists. This built-in administrator account is created with a blank password. This poses security risks, so the built-in administrator account is disabled by default in Windows Vista and later systems due to the introduction of User Account Control (UAC).

A Windows administrator account is not an exact analogue of the Unix root account - some privileges are assigned to the "Local System account". The purpose of the administrator account is to allow making system-wide changes to the computer (with the exception of privileges limited to Local System).

The built-in administrator account and a user administrator account have the same level of privileges. The default user account created in Windows systems is an administrator account. Unlike Mac OS X, Linux, and Windows Vista/7 administrator accounts, administrator accounts in Windows systems without UAC do not insulate the system from most of the pitfalls of full root access. One of these pitfalls includes decreased resilience to malware infections. In Microsoft Windows 2000, Windows XP Professional, and Windows Server 2003, administrator accounts can be insulated from more of the these pitfalls by changing the account from the administrator group to the power user group in the user account properties but this solution is not as effective as using newer Windows systems with UAC.

In Windows Vista/7 administrator accounts, a prompt will appear to authenticate running a process with elevated privileges. No user credentials are required to authenticate the UAC prompt in administrator accounts but authenticating the UAC prompt requires entering the username and password of an administrator in standard user accounts. In Windows XP (and earlier systems) administrator accounts, authentication is not required to run a process with elevated privileges and this poses another security risk that lead to the development of UAC. Users can set a process to run with elevated privileges from standard accounts by setting the process to "run as administrator" or using the "runas" command and authenticating the prompt with credentials (username and password) of an administrator account. Much of the benefit of authenticating from a standard account is negated if the administrator account's credentials being used has a blank password (as in the built-in administrator account in Windows XP and earlier systems).

Read more about this topic:  Super-user

Other articles related to "windows nt, nt, windows":

Windows NT - Supported Platforms - Hardware Requirements
... the professional workstation version of Windows NT has been fairly slow-moving until the 6.0 Vista release, which requires a minimum of 15 GB of free disk space, a 10-fold ... Windows NT desktop (x86) minimum hardware requirements NT version CPU RAM Free disk space NT 3.1 NT 3.1 Advanced Server 386, 25 MHz 12 MB 16 MB 90 MB NT 3.5 Workstation NT 3.5 Server 386, 25 MHz 12 MB 16 MB 90 MB ...
MS-DOS - Windows Command-line Interface
... All versions of Microsoft Windows have had an MS-DOS like command-line interface (CLI) ... The user interface, and the icon up to Windows 2000, followed the native MS-DOS interface ... The 16-bit versions of Windows (up to 3.11) ran as a Graphical User Interface (GUI) on top of MS-DOS ...
Microsoft POSIX Subsystem
... Microsoft POSIX subsystem is one of 3 subsystems of several operating systems from the Windows NT family (together with OS/2 and Windows subsystems) ... Microsoft Windows implements only the first version of the POSIX standards, namely POSIX.1 ... Versions Windows NT 3.5, Windows NT 3.51 and Windows NT 4 were certified as compliant with the FIPS 151-2 ...
Microsoft Office 95 - Features
... True to its namesake, this suite is designed specifically for Windows 95 ... Previously, Microsoft had released Office 4.2 for Windows NT for several architectures, which included 32‑bit Word 6.0 for Windows NT and Excel 5.0 for Windows NT, but PowerPoint 4.0 was 16‑bit ... With Office for Windows 95, all components in the suite were 32-bit ...
Program Files
... Files' is a standard folder in Microsoft Windows operating systems in which applications that are not part of the operating system are conventionally ... In an standard Windows installation, the 'Program Files' directory will be at %SystemDrive%Program Files (or the localized equivalent thereof), and the 'Common Program Files' (or the localized equivalent thereof ... In Windows Vista and later, the paths to the 'Program Files' and 'Common Program Files' directories are not localized on disk ...

Famous quotes containing the word windows:

    Among a hundred windows shining
    dully in the vast side
    of greater-than-palace number such-and-such
    one burns
    these several years, each night
    as if the room within were aflame.
    Denise Levertov (b. 1923)