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In Windows NT and later systems derived from it (such as Windows 2000, Windows XP, Windows Server 2003, and Windows Vista/7/8/10/11), there must be at least one administrator account (Windows XP and earlier) or one able to elevate privileges to superuser (Windows Vista/7/8/10/11 via User Account Control). [12]
Windows 1.0–3.11 and Windows 9x: all applications had privileges equivalent to the operating system;; All versions of Windows NT up to, and including, Windows XP and Windows Server 2003: introduced multiple user-accounts, but in practice most users continued to function as an administrator for their normal operations.
User Account Control uses a combination of heuristic scanning and "application manifests" to determine if an application requires administrator privileges. [19] Manifest files, first introduced with Windows XP, are XML files with the same name as the application and a suffix of ".manifest", e.g. Notepad.exe.manifest. When an application is ...
The user-profiling scheme in force today owes its origins to Windows NT, which stored its profiles within the system folder itself, typically under C:\WINNT\Profiles\. Windows 2000 saw the change to a separate "Documents and Settings" folder for profiles, and in this respect is virtually identical to Windows XP and Windows Server 2003.
Windows XP implements "simple file sharing" (also known as "ForceGuest"), a feature that can be enabled on computers that are not part of a Windows domain. [6] When enabled, it authenticates all incoming access requests to network shares as "Guest", a user account with very limited access rights in Windows. This effectively disables access to ...
Windows XP has been criticized for its vulnerabilities due to buffer overflows and its susceptibility to malware such as viruses, trojan horses, and worms.Nicholas Petreley for The Register notes that "Windows XP was the first version of Windows to reflect a serious effort to isolate users from the system, so that users each have their own private files and limited system privileges."
The first, Windows XP 64-Bit Edition, was intended for IA-64 systems; as IA-64 usage declined on workstations in favor of AMD's x86-64 architecture, the Itanium edition was discontinued in January 2005. [57] A new 64-bit edition supporting the x86-64 architecture, called Windows XP Professional x64 Edition, was released in April 2005. [58]
One thing was true until Windows 7: the user shouldn't use the Admin account all the time. It needed to have a normal-account for day-to-day use, and an admin account only for making system changes. But with UAC, even and admin need to "authorize" applications to make changes, without this need of logging out and logging in again.