This setting lets you adjust the grace period between appearance of a password-protected screen saver and acceptance of password.
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Registry Entry Details:
Apply registry settings according below given steps of screenshots with related changes.
First, click the 'Start' button, and select 'Run'. In the resulting dialog box, type "regedit".
Second, go to the [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\] key, right-click on the right pane and click on "New > String Value" to create a new String value with the name "ScreenSaverGracePeriod".
Third, right-click on the 'ScreenSaverGracePeriod' String value and click on "Modify".
Finally, enter a value in seconds between 0 and 2147483 (24 days approx.) in the text box and click on 'OK'.
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