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XP Pro.'s winlogon.exe not locking my system?



 
 
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Old January 8th 11, 04:55 PM posted to microsoft.public.windowsxp.help_and_support,microsoft.public.windowsxp.setup,microsoft.public.windowsxp.general,microsoft.public.windowsxp,microsoft.public.windowsxp.hardware
Ant[_3_]
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Default XP Pro.'s winlogon.exe not locking my system?

Hello.

I have three different custom built machines with old, updated Windows
XP Pro. SP(2 and 3) that have ATI Radeon video cards (9600 AIW, 9800 Pro
AIW, and HD 4870) and ATI Catalyst drivers and its Control Center
(latest to the old legacy versions).

I noticed sometimes they won't/didn't security lock correctly from their
defined screen saver's times. Even press winkey+L does not lock. I did
see winlogon.exe running in XP's Task Manager. The only way to fix this
problem is to reboot the computer.

Is this a known issue and is there a way to fix it without rebooting
like restarting winlogon.exe process? It seems like this is related to
ATI video cards and its drivers in XP Pro.? I never see it with XP
systems without ATI video cards like NVIDIA and onboard Intel video
chipsets. And yes, I scanned for malwares with multiple updated
softwares. They all showed my systers as clean. Event logs don't show
anything about winlogon.exe.

Thank you in advance.
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