User account control software download




















WhatsApp Messenger. Talking Tom Cat. Clash of Clans. Subway Surfers. TubeMate 3. Google Play. Navient student loan settlement. GameStop in-store PS5 restock. N95, KN95, KF94 masks. Windows Windows. Most Popular. New Releases. If the user selects Permit, the operation continues with the user's highest available privilege. Prompt for credentials When an operation requires elevation of privilege, the user is prompted to enter an administrative user name and password. If the user enters valid credentials, the operation continues with the applicable privilege.

Prompt for consent When an operation requires elevation of privilege, the user is prompted to select either Permit or Deny. Prompt for consent for non-Windows binaries Default When an operation for a non-Microsoft application requires elevation of privilege, the user is prompted on the secure desktop to select either Permit or Deny.

This policy setting controls the behavior of application installation detection for the computer. This policy setting enforces public key infrastructure PKI signature checks for any interactive applications that request elevation of privilege. Enterprise administrators can control which applications are allowed to run by adding certificates to the Trusted Publishers certificate store on local computers. Kernel Component Description Virtualization Virtualization technology ensures that non-compliant apps do not silently fail to run or fail in a way that the cause cannot be determined.

UAC also provides file and registry virtualization and logging for applications that write to protected areas. File system and registry The per-user file and registry virtualization redirects per-computer registry and file write requests to equivalent per-user locations.

Read requests are redirected to the virtualized per-user location first and to the per-computer location second. The slider will never turn UAC completely off. If you set it to Never notify , it will:. Because system administrators in enterprise environments attempt to secure systems, many line-of-business LOB applications are designed to use only a standard user access token.

As a result, you do not need to replace the majority of apps when UAC is turned on. Windows 10 and Windows 11 include file and registry virtualization technology for apps that are not UAC-compliant and that require an administrator's access token to run correctly. When an administrative apps that is not UAC-compliant attempts to write to a protected folder, such as Program Files, UAC gives the app its own virtualized view of the resource it is attempting to change.

The virtualized copy is maintained in the user's profile. This strategy creates a separate copy of the virtualized file for each user that runs the non-compliant app. Most app tasks operate properly by using virtualization features. Although virtualization allows a majority of applications to run, it is a short-term fix and not a long-term solution. App developers should modify their apps to be compliant as soon as possible, rather than relying on file, folder, and registry virtualization.

Virtualization does not apply to apps that are elevated and run with a full administrative access token. Virtualization supports only bit apps. Non-elevated bit apps simply receive an access denied message when they attempt to acquire a handle a unique identifier to a Windows object.

Native Windows bit apps are required to be compatible with UAC and to write data into the correct locations. Virtualization is disabled if the app includes an app manifest with a requested execution level attribute. An app manifest is an XML file that describes and identifies the shared and private side-by-side assemblies that an app should bind to at run time. The app manifest includes entries for UAC app compatibility purposes.

Administrative apps that include an entry in the app manifest prompt the user for permission to access the user's access token. Although they lack an entry in the app manifest, most administrative app can run without modification by using app compatibility fixes. App compatibility fixes are database entries that enable applications that are not UAC-compliant to work properly. All UAC-compliant apps should have a requested execution level added to the application manifest.

If the application requires administrative access to the system, then marking the app with a requested execution level of "require administrator" ensures that the system identifies this program as an administrative app and performs the necessary elevation steps.

Requested execution levels specify the privileges required for an app. Installation programs are apps designed to deploy software. Most installation programs write to system directories and registry keys. These protected system locations are typically writeable only by an administrator in Installer detection technology, which means that standard users do not have sufficient access to install programs.

Windows 10 and Windows 11 heuristically detect installation programs and requests administrator credentials or approval from the administrator user in order to run with access privileges. Windows 10 and Windows 11 also heuristically detect updates and programs that uninstall applications.

One of the design goals of UAC is to prevent installations from being run without the user's knowledge and consent because installation programs write to protected areas of the file system and registry. Before a bit process is created, the following attributes are checked to determine whether it is an installer:. The keywords and sequences of bytes were derived from common characteristics observed from various installer technologies. Otherwise, it's recommended to choose one of the options above.

Note : This option isn't recommended due to security concerns. If you need additional help, ask the Microsoft community. Windows 7 Windows 8. Need more help? Expand your skills. Get new features first. Was this information helpful?



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