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User Account Control (UAC) is a mandatory access control enforcement feature introduced with Microsoft's Windows Vista [1] and Windows Server 2008 operating systems, with a more relaxed [2] version also present in Windows 7, Windows Server 2008 R2, Windows 8, Windows Server 2012, Windows 8.1, Windows Server 2012 R2, Windows 10, and Windows 11.
Under some legacy versions of the Microsoft Windows operating system, the All Users screensaver runs under the Local System account – any account that can replace the current screensaver binary in the file system or Registry can therefore elevate privileges. A Windows driver, for example kprocesshacker.sys, can be used to run programs such as ...
Not holding privileges until actually required is in keeping with the principle of least privilege. Elevated processes will run with the full privileges of the user, not the full privileges of the system. Even so, the privileges of the user may still be more than what is required for that particular process, thus not completely least privilege.
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]
In information security, computer science, and other fields, the principle of least privilege (PoLP), also known as the principle of minimal privilege (PoMP) or the principle of least authority (PoLA), requires that in a particular abstraction layer of a computing environment, every module (such as a process, a user, or a program, depending on the subject) must be able to access only the ...
[3] regsvr32 requires elevated privileges. [4] To be used with regsvr32, a DLL must export the functions DllRegisterServer and DllUnregisterServer. [5] The regsvr32 command is comparable to ldconfig in Linux.
Starting with Windows 10 Insiders build 14972 the requirement for elevated administrator privileges was removed in Windows "Developer Mode", allowing symlinks to be created without needing to elevate the console as administrator. At the API level, a SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE flag is supplied for this purpose. [21]
ATATool must be run with administrator privileges. On Windows Vista and later it requires an elevated-privileges command prompt (see User Account Control). The target drive must be connected to a physical disk controller. The software will not work when using a hard drive through an external connection like USB or any external hard drive.