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Lsass.exe is writing to teh hard drive all the time

I run Windows XP Pro SP II.
I discovered that Lsass.exe writes all teh time to teh hard drive. I checked this fact on three different computers.
Is this normal? Will this, in the long run, shorten the hard drive life?

dbessis
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dbessis
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dbessis
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Expert4XPCommented:
I think that is normal.

"lsass.exe" is the Local Security Authentication Server. It verifies the validity of user logons to your PC/Server.
http://www.neuber.com/taskmanager/process/lsass.exe.html

You could also check your audit logging settings. My Computer/Manage/Event Viewer/Security and see what is being logged and/or enable more logging if needed.
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Expert4XPCommented:
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Expert4XPCommented:

http://www.symantec.com/avcenter/venc/data/w32.sasser.removal.tool.html

or search Google with words:  sasser.exe spyware remove
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dbessisAuthor Commented:
It is NOT the spyware version but the true LSass.exe that I have.
What I do not understand is the constant writing. This executable should work ONLY when connecting to a Web site over the Internet. What can it be doing all the time?
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Expert4XPCommented:
Try the filemon and/or process explorer free programs from sysinternals.  They are really helpful in finding out who is doing i/o and using cpu.

http://www.sysinternals.com/ProcessesAndThreadsUtilities.html

http://www.sysinternals.com/FileAndDiskUtilities.html
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