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Received A Lsass.exe System Error On Boot, But Machine Now Booted. What Should I Do Before Re-boot?

For a couple of days I was receiving the following error on my XP Pro laptop when I would try to boot the machine:
“lsass.exe System Error
An I/O operation initiated by the registry failed irrecoverably. The registry could not read in, or write out, or flush, one of the files that contain the system’s image of the registry.”
I could not boot the machine even in safe mode. Norton GoBack was installed and when I finally disabled it at the boot screen, I was able to boot the machine.
Is there anything I should do to avoid this error in the future before shutting the machine down? Windows had installed the indexing service and my drive space is now down to 4.4GB (7%).
The only other clue is that Windows explorer locks up alot. I have done a thorough SpinRite analysis of the drive and it all checks out good.
Just want to do anything else that might avoid the problem again (or be prepared for it) before I shut the machine down.
Thanks.

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This entry was posted on Tuesday, November 24th, 2009 at 10:40 am and is filed under exe errors. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

2 Responses to “Received A Lsass.exe System Error On Boot, But Machine Now Booted. What Should I Do Before Re-boot?”

  1. crymsond says:
    November 24, 2009 at 10:40 am

    This is a Trojan virus. Do a virus scan. You could use trendmicro house call if you don’t have a virus program.

  2. Duan C says:
    November 24, 2009 at 10:40 am

    You can re-install the system, but I it is not necessary to do so. You may try a software named Perfect Optimizer, this software can help you repair registry errors, clean up junk files, clear history records and personal privacy, speed up startup and whole operating system and our amazing One-Click function.

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