UAC has four levels of notification to choose from and a slider to use to select the notification level:
+UAC has a slider to select from four levels of notification.
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Always Notify
-If the slider is set to Always notify, the system will notify you when programs try to install software or make changes to your computer.
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Medium
-If the slider is set to Notify me only when programs try to make changes to my computer, the User Account Control: Only elevate executable files that are signed and validated policy setting is checked:
+ Always notify will:
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If the policy setting is enabled, the public key infrastructure (PKI) certification path validation is enforced for a given file before it is permitted to run.
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If the policy setting is not enabled (default), the PKI certification path validation is not enforced before a given file is permitted to run. The User Account Control: Switch to the secure desktop when prompting for elevation Group Policy setting is checked.
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+- Notify you when programs try to install software or make changes to your computer.
+- Notify you when you make changes to Windows settings.
+- Freeze other tasks until you respond.
+Recommended if you often install new software or visit unfamiliar websites.
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Low
-If the slider is set to Notify me only when apps try to make changes to my computer (do not dim by desktop), the CreateProcess is called.
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Never Notify
-If the slider is set to Never notify me when, UAC prompt will never notify when an app is trying to install or trying to make any change on the computer.
-Important This setting is not recommended. This setting is the same as setting the User Account Control: Behavior of the elevation prompt for administrators in Admin Approval Mode policy setting to Elevate without prompting.
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+Notify me only when programs try to make changes to my computer will:
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+- Notify you when programs try to install software or make changes to your computer.
+- Not notify you when you make changes to Windows settings.
+- Freeze other tasks until you respond.
+Recommended if you do not often install apps or visit unfamiliar websites.
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+Notify me only when programs try to make changes to my computer (do not dim my desktop) will:
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+- Notify you when programs try to install software or make changes to your computer.
+- Not notify you when you make changes to Windows settings.
+- Not freeze other tasks until you respond.
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+Not recommended. Choose this only if it takes a long time to dim the desktop on your computer.
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+Never notify (Disable UAC) will:
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+- Not notify you when programs try to install software or make changes to your computer.
+- Not notify you when you make changes to Windows settings.
+- Not freeze other tasks until you respond.
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+Not recommended due to security concerns.
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