Changing the screen saver time using the registry


How to change the screen saver time using the registry

Some Windows XP boxes have a Local secuiryt policy preventing you to access the display properties of the computer
The message usually comes up like this:
Message: This operation has been cancelled due to restrictions in effect on this computer – Please contact your system administrator

Workaround:

Open the registry (via Start-Run regedit; or if you can’t open that way, try to open “My computer”, select the C drive; open the Windows folder and double click on the regedit.exe file) locate the registry key below:
HKEY_USERS\.DEFAULT\Control Panel\Desktop\ScreenSaveTimeOut
The default value is 600 seconds (10 minutes); To modify, do the following:

Right-click: ScreenSaveTimeOut, and then click Modify.
In the Value data box, type the value that you want to use in seconds, and then click OK.

Detailed information here:

Extracted from Microsoft KB811329 – The screensaver time-out value is not restored after you use Remote Desktop Connection to log on to Windows XP Professional

“Consider the following scenario:
You configure the screensaver time-out value on a computer that is running Microsoft Windows XP Professional. For example, you configure the time-out value to five minutes.
You log on to the Windows XP Professional-based computer by using Remote Desktop Connection (RDC) with a different user account. The RDC session uses the screen saver time-out value from the default profile. By default, the screen saver time-out value from the default profile is 600 seconds, or 10 minutes.
You log on locally to the computer that is running Windows XP Professional.
In this scenario, the screen saver time-out value that you configured is not used. Instead, the screen saver time-out value from the default profile is used. For example, the screensaver does not start after five minutes of inactivity. Instead, the screensaver starts after 10 minutes of inactivity.

Workaround:
To work around this problem, configure the screen saver time-out value in the default profile. The screen saver time-out value for the default profile is configured in the ScreenSaveTimeOut registry entry in the following subkey:
HKEY_USERS\.DEFAULT\Control Panel\Desktop
Note The default value for the ScreenSaveTimeOut registry entry is 600. This value is in seconds.
To change this value, follow these steps:
Click Start, click Run, type regedit in the Open box, and then click OK.
Locate and then click the following entry in the registry:
HKEY_USERS\.DEFAULT\Control Panel\Desktop\ScreenSaveTimeOut
Right-click ScreenSaveTimeOut, and then click Modify.
In the Value data box, type the value that you want to use in seconds, and then click OK.
Exit Registry Editor.”

source: http://support.microsoft.com/kb/811329

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