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  1. #1
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    lsass.exe Memory Hog (XP Home SP1)

    I am putting together a new system and have been having problems from the gitgo. The problem is that lsass.exe (local security authentication server) process continues to eat up resources in 4K chunks about every 2 seconds until it gets up over 100K and the system slows down so much that I have to reboot. It then starts out about at about 4.5K and starts its never ending climb again.

    My OEM XP Home OS disk includes SP1 (one forum suggested re-installing SP1 - the setup disk does not allow that - only a complete re-install which did not work)

    I've run AdAware, SpyBot and Norton AV - all okay. I am behind a NAT router and ZoneAlarm.

    Another suggestion was to remove patch 811493 - which I did but to no avail.

    Has anyone else experienced this memory leak?

    Ideas?
    Bill (AFE7Ret)
    Freedom is NOT Free!
    Heat is the bane of all electronics!

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  2. #2
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    Re: lsass.exe Memory Hog (XP Home SP1)

    This might help, be sure to read all posts. lsass.exe Windows XP

  3. #3
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    Re: lsass.exe Memory Hog (XP Home SP1)

    Been there and done that - also went to Black Viper yesterday and tried some of his tricks - nice site but didn't help.

    I have not been able to reinstall SP1a since my OS disk has 1a integrated in it, it does not allow me reinstall just the SP.

    In the meantime - still consuming about 4K every 2 seconds.

    Still open to suggestions.
    Bill (AFE7Ret)
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    Heat is the bane of all electronics!

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  4. #4
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    Re: lsass.exe Memory Hog (XP Home SP1)

    Mine is 1136K with 3 computers on the network.

    Now running HP Pavilion a6528p, with Win7 64 Bit OS.

  5. #5
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    Re: lsass.exe Memory Hog (XP Home SP1)

    This is what my Task Manager shows.

  6. #6
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    Re: lsass.exe Memory Hog (XP Home SP1)

    Yeah I have two.

  7. #7
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    Re: lsass.exe Memory Hog (XP Home SP1)

    My XP Pro shows: 1268K - 0 CPU
    The wife's XP Home: 1724K - 0 CPU
    The New XP Home: 57,852K (and Climbing) - 0 CPU

    Ok - we might be on to something - in looking into the above, I noticed that one of the svchost.exe processes (I had 3) was hogging about 50 % CPU resources and about 17KKs - when I killed that svchost process, lsass.exe dropped to 492K - so, I think I need to snoop around the registry to see which program/service (dll ?) is causing problems.

    In the meantime, does anyone know an XP Home equilivant to XP Pro's "tasklist /svc" - that might make it easier if I could get a similar output.

    Thanks and keep coming with the ideas/suggestions!!!
    Bill (AFE7Ret)
    Freedom is NOT Free!
    Heat is the bane of all electronics!

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  8. #8
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    Re: lsass.exe Memory Hog (XP Home SP1)

    Not on XP Home systems - but I found tasklist.exe on the net and dl'ed it to the Home system - ran it twice, once with the offending svchost still killed and again after reboot. It appears to be the svchost that supports: AudoSrv, DHCP, EventSystem, lanmanserver, lanmanworkstation, Netman, Nla, Schedule, seclogon, SENS, ShellHWDetection, srservice, Themes, Trkwks, uploadmgr, w32Time, and winmgmt.

    So, hopefully through the process of elimination I'll find out which on - after I learn what some of them are, line Nla, and SENS
    Bill (AFE7Ret)
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    Heat is the bane of all electronics!

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  9. #9
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    Re: lsass.exe Memory Hog (XP Home SP1)

    Hey Bill--

    Take a look at the utilities at Sys Internals and see if one of the monitoring tools like CPUMon 2.0 of the Performance tools like Cache Set 1.0 might get at monitoring and revealing what you're after.

    SMBP

  10. #10
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    Re: lsass.exe Memory Hog (XP Home SP1)

    Hey Everyone - I got it, finally. I had eliminated just about everything when all that was left was GMT Services. So I Googled it and found out it was Gigabyte Management Tool - some weird-ass thing that came with the mobo drivers used to create, save, and open administrative tools (called GMT consoles) that manage the hardware, software, and network components. I killed that service and immediately, lsass.exe stopped eating 4K chunks of resources every 2 secs. Waited for the next pool cycle and lsass.exe went from 65KKbytes down too 556K - now it bounces around between about 700K and 1,700K - I can live with this.

    So now I have put all my services back to their default settings (thanks Black Viper) and am good to go.

    Thanks for everyones' ideas and suggestions - they led me down the right path to figure it out.
    Bill (AFE7Ret)
    Freedom is NOT Free!
    Heat is the bane of all electronics!

    ─────────────────────

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