Windows 2008 R2 Screen Lock Issue (GPO)

Question

Scenario: We will be deploying POS machines at our stores that will have Windows 2008 R2 as the preferred OS. The function of this POS machine is for POS administration and not for ringing up sales. The machines have been configured to autologin a specific
user via GPO for POS functions. Also, a specific POS desktop environment shell has been configured to launch instead of Explorer (explorer.exe) shell environment at autologon.
Everything seems to be working as expected except for the session of the user locking. Since the POS environment needs to be up at all times with the specific user profile, we do not want the OS to lock the user session. I've timed it and it seems to lock
the screen (not log off) at approximately 15 minutes of inactivity, we do not want this.
So far, these are the GPOs I have configured that have not fixed the issue:
Computer Configuration>Policies>Windows Settings>Security Settings>Local Policies>Security Options>Microsoft Network Server: Amount of idle time required before suspending session = 99999 minutes
Computer Configuration>Policies>Administrative Templates>System>Power Management>Sleep Settings>Allow applications to prevent automatic sleep (plugged in) = Enabled
Computer Configuration>Policies>Administrative Templates>System>Power Management>Sleep Settings>Require a password when a computer wakes (plugged in) = Disabled
Computer Configuration>Policies>Administrative Templates>System>Power Management>Sleep Settings>Turn off hybrid sleep (plugged in) = Enabled
Computer Configuration>Policies>Administrative Templates>System>Power Management>Sleep Settings>Turn on the ability for applications to prevent sleep transitions (plugged in) = Enabled
Computer Configuration>Policies>Administrative Templates>System>Power Management>Video and Display Settings>Turn off the display (plugged in) = Enabled = 99999 seconds
User Configuration>Policies>Administrative Templates>Control Panel>Personalization>Enable screen saver = Disabled
User Configuration>Policies>Administrative Templates>Control Panel>Personalization>Password protect the screen saver = Disabled
User Configuration>Policies>Administrative Templates>System>Ctrl+Alt+Del Options>Remove Lock Computer = Enabled
User Configuration>Preferences>Windows Settings>Registry>HKCU>Control Panel>Desktop>ScreenSaveActive = 0
What are we doing wrong? How do I configure the OS to not lock the user session but keep it active at all times?
As a side note: We have Windows 7 POS machines also that will be ringing up sales that we do not have the screen lock issue.

Answer 1

Hi,
>>Please see my setting indicated in my original post. We have Turn Off the Display set to 99999 seconds.
I understand that we have set the Turn Off the Display for this amount of time. However, just for double check, we can go to the power plan we are using to check if the setting has been applied successfully. If the setting has been applied successfully,
it should be grayed out. Or, we can run command gpresult/h gpreport.html
with admin privileges to collect group policy result report to check this.
Besides, do we use other third party software to protect our computer? We can try to clean boot the server to see if the situation persists.
Regarding how to perform a clean boot, the following article can be referred to for more information.
How to perform a clean boot in Windows
http://support.microsoft.com/KB/929135
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Best regards,
Frank Shen