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  1. #1
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    Boot failure (XP Pro (SP2))

    My computer is repeatedly coming up with the message: "Isass.exe Object Name not found", and refusing to continue the boot sequence beyond this point. Would very much appreciate knowing how to restore this file when I can't get the machine to boot to start with. I have an MSDOS startup disk for XP (floppy), and the Win XP upgrade and SP2 CDs. I'm aware that a trojan of this name is sometimes substituted for this system file, but I am using ZA Security Suite 6, so presumably this is unlikely.

  2. #2
    Plutonium Lounger
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    Re: Boot failure (XP Pro (SP2))

    I won't bother you with the two threads in recent times where I had a similar problem, although not the same file, and my backup image is what saved me. My emergency boot disk was of no help.

    Take a look at <!post=this thread,497,159>this thread<!/post> from back in the summer. There might be something there you can try, like safe mode or the suggestions further down in the thread.

  3. #3
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    Re: Boot failure (XP Pro (SP2))

    Thanks very much for taking the trouble to reply. Like others in the past, safe mode does not seem to get me anywhere, so it looks like a reinstall of XP is the only option. Which gives me further problems as I've stupidly ended up without a copy of all my work files in My Docs. Any one know a way of getting these files off before reinstalling?

  4. #4
    WS Lounge VIP rory's Avatar
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    Re: Boot failure (XP Pro (SP2))

    Hi,
    A couple of questions:
    1. Do you have multiple partitions or just one big C: partition?
    2. Is/are your partition(s) formatted as FAT32 or NTFS?
    3. Do you have, or know anyone who has, one of the Linux Live distributions (i.e. they run from a CD rather than hard drive)? If so, you may be able to use one of those to copy the files to a USB drive.

    Otherwise, if your documents are valuable, it may be worth buying a cheap small HD, installing Windows on it and then using that to copy the files from your old HD before you do the reinstall on that disk.

    HTH.
    Regards,
    Rory

    Microsoft MVP - Excel

  5. #5
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    Re: Boot failure (XP Pro (SP2))

    Why do you assume that because you have some form of protection that it is unlikely that you have acquired a virus or worm ??? If your definitions were not current something can get past the protection and infect you. Assume the worst and hope for the best. <img src=/S/yep.gif border=0 alt=yep width=15 height=15> If the lsass.exe is spelled with a capital L this is OK...if spelled all lower case, this is a sasser worm infection.

    First, go to Symantec and get a copy of the removal tool. Then, if your system is connected to the internet disconnect and unplug the connection. Now attempt to reboot and see if it comes up. If not, then try safe mode. Your system must be able to boot to use this tool. Post back if you are unable to get the machine to boot. HTH
    <IMG SRC=http://www.wopr.com/w3tuserpics/DocWatson_sig.gif>

  6. #6
    Plutonium Lounger
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    Re: Boot failure (XP Pro (SP2))

    As Rory suggests, it would be well worth the cost and trouble to buy a spare hard drive and install Windows to that, so you can put the old drive as slave and capture your valuable documents from it. A side benefit to that would be that you could then use the second drive to make regular backups of some sort (your choosing) to prevent this bottleneck in the future.

    I gather you've tried the "repair" installation with the Windows CD, huh? (one of the suggestions from Rebel in my referenced thread). Good luck...

  7. #7
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    Re: Boot failure (XP Pro (SP2))

    Thanks for your reply: just one big C: partition formatted as NTFS. Will look into possibility of getting Linux Live from a friend.

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    Re: Boot failure (XP Pro (SP2))

    Hi Doc

    My definitions were up to date, hence the assumption, but will try your suggestion soon as solve the booting problem - thanks

  9. #9
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    Re: Boot failure (XP Pro (SP2))

    Tried to get the repair console to work, but could not remember the administrator password after all these years - that'll teach me not to be systematic.

  10. #10
    WS Lounge VIP rory's Avatar
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    Re: Boot failure (XP Pro (SP2))

    FYI - Knoppix is quite a popular (and useful) Linux distribution for this sort of thing.
    (PS Shame this didn't happen last week as I was actually in Portscatho then and I almost always have such a CD with me! <img src=/S/grin.gif border=0 alt=grin width=15 height=15>)
    Regards,
    Rory

    Microsoft MVP - Excel

  11. #11
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    Re: Boot failure (XP Pro (SP2))

    Thanks, amazing coincidence at any rate!

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